web pages

Google "First Click Free" for protected areas

2008-10-19T16:03:42-06:00

Google found a solution to index the web pages protected by webmasters or owners. "First Click Free" means to allow Google to include your protected pages in the search results, and to provide full access for the text on that page. This way, the first visit is free for paid subscription and other protected pages and does not require a login. The free visitor can be block for the other protected pages or sections.

In order to implement the First Click free, the webmasters have to provide full access to the first visited page for the visitors coming from the search engine search results or other Google domain, the displayed page must be identical to the content that is shown to Googlebot, and for a multi-page article the webmasters must provide full access to all the corresponding pages. The webmaster needs needs to configure the website to serve the full text of each document when the request is identified as coming from Googlebot via the user-agent and IP-address, and the robots.txt file to allow access of these URLs by Googlebot. In order to do this, the web server will need to check the "Referer" HTTP request-header field.

The First Click Free URLs can be submitted using Sitemap files.

By using First Click Free, Google does not guarantee inclusion in the web index.

Google Economy

2008-09-18T08:21:33-06:00

Google Economy identifies the concept that the value of a resource can be determined by the way that resource is linked to other resources. It is more complex than search ranking, and broader than interlinked web pages, though it draws meaning from both.

The Internet and World Wide Web have emphasized the role of the citation as a means of identifying the value of a resource. The structure of the print publishing world imposes strict limits on what information is promoted and distributed, but the web imposes much lower barriers to 'publication,' eliminating the old-media filters that information consumers once depended on to identify worthy information. Internet Search engines were developed to help navigate the growing number of web pages, but their results could not represent the value of individual pages until Google's Larry Page and Sergey Brin started to apply the concept of citation analysis that was developed in the 1950s by Dr. Eugene Garfield at the University of Pennsylvania. Today, Google's PageRank weighs heavily on citation analysis among the more than 150 criteria evaluated.

The result is that the PageRank of any single web page is highly dependent on the number of web pages that link to it (and their PageRank). The highest ranked pages appear at the top of the search results page. The financial implication for commercial web sites are obvious (and often exploited), but there are serious implications for non-commercial content as well. A person doing any research on the web will find his or her results heavily influenced by PageRank-style ranking. Accurate and correct information that is poorly linked will have lower ranking than incorrect or misleading information that is better linked. Because many of the most authoritative information sources -- examples: medical journals, the Oxford English Dictionary -- are subscription services, their content is not available for indexing by search engines, and by extension, to those using search engines for research.

Even among free services -- many library catalogs, for instance -- it can be difficult to index the information because of technical obstacles like dynamic URLs that make it difficult to deep link to content or explicit prohibitions in the robots.txt. The result is that a person searching for a book is far more likely to find the Amazon.com catalog page or blog posts discussing the book long before they will find any library offering the book for loan.

As with market economies, the Google Economy is subject to uncertainties, fluctuation, and occasional manipulation. Manipulators do so, however, at serious risk, as search engines have been known to blacklist them from results pages. Further, search engine engineers continue to refine ranking criteria to deliver quality search results. In general, however, there are three rules for full participation in the Google Economy:

Linking must be possible
Linking must be desirable
Linking must be measurable

Web site design

2008-08-07T10:24:31-06:00

A Web site is a collection of information about a particular topic or subject. Designing a website is defined as the arrangement and creation of Web pages that in turn make up a website. A Web page consists of information for which the Web site is developed. A website might be compared to a book, where each page of the book is a web page.

There are many aspects (design concerns) in this process, and due to the rapid development of the Internet, new aspects may emerge. For typical commercial Web sites, the basic aspects of design are:

The content: The substance, and information on the site should be relevant to the site and should target the area of the public that the website is concerned with.
The usability: The site should be user-friendly, with the interface and navigation simple and reliable.
The appearance: The graphics and text should include a single style that flows throughout, to show consistency. The style should be professional, appealing and relevant.
The visibility: The site must also be easy to find via most, if not all, major search engines and advertisement media.

A Web site typically consists of text and images. The first page of a website is known as the Home page or Index. Some websites use what is commonly called a Splash Page. Splash pages might include a welcome message, language/region selection, or disclaimer. Each web page within a Web site is an HTML file which has its own URL. After each Web page is created, they are typically linked together using a navigation menu composed of hyperlinks. Faster browsing speeds have led to shorter attention spans and more demanding online visitors and this has resulted in less use of Splash Pages, particularly where commercial websites are concerned.

Once a Web site is completed, it must be published or uploaded in order to be viewable to the public over the internet. This may be done using an FTP client. Once published, the Web master may use a variety of techniques to increase the traffic, or hits, that the website receives. This may include submitting the Web site to a search engine such as Google or Yahoo, exchanging links with other Web sites, creating affiliations with similar Web sites, etc.

Multidisciplinary requirements

Web site design crosses multiple disciplines of information systems, information technology and communication design. The website is an information system whose components are sometimes classified as front-end and back-end. The observable content (e.g page layout, user interface, graphics, text, audio) is known as the front-end. The back-end comprises the organization and efficiency of the source code, invisible scripted functions, and the server-side components that process the output from the front-end. Depending on the size of a Web development project, it may be carried out by a multi-skilled individual (sometimes called a web master), or a project manager may oversee collaborative design between group members with specialized skills.

Issues

As in most collaborative designs, there are conflicts between differing goals and methods of web site designs. These are a few of the ongoing ones.

Lack of collaboration in design

In the early stages of the web, there wasn't as much collaboration between web designs and larger advertising campaigns, customer transactions, social networking, intranets and extranets as there is now. Web pages were mainly static online brochures disconnected from the larger projects.

Many web pages are still disconnected from larger projects. Special design considerations are necessary for use within these larger projects. These design considerations are often overlooked, especially in cases where there is a lack of leadership, understanding or concern for the larger project to facilitate collaboration. This often results in unhealthy competition or compromise between departments, and less than optimal use of web pages.

Liquid versus fixed layouts

On the web the designer has no control over several factors, including the size of the browser window, the web browser used, the input devices used (mouse, touch screen, voice command, text, cell phone number pad, etc.) and the size and characteristics of available fonts.

Some designers choose to control the appearance of the elements on the screen by using specific width designations. This control may be achieved through the use of a HTML table-based design, or through the use of CSS. Whenever the text, images, and layout of a design do not change as the browser changes, this is referred to as a fixed width design. Proponents of fixed width design prefer the control over the look and feel of the site and the precision placement of objects on the page. Other designers choose a liquid design. A liquid design is one, like Wikipedia, where the design moves to flow content into the whole screen, or a portion of the screen, no matter what the size of the browser window. Proponents of liquid design prefer to use all the screen space available. Liquid design can be achieved through the use of CSS, by avoiding styling the page altogether, or by using HTML tables set to a percentage of the page. Both liquid and fixed design developers must make decisions about how the design should degrade on higher and lower screen resolutions. Sometimes the pragmatic choice is made to flow the design between a minimum and a maximum width. This allows the designer to avoid coding for the browser choices making up the long tail, while still using all available screen space.

Similar to liquid layout is the optional fit to window feature with Adobe Flash content. This is a fixed layout that optimally scales the content of the page without changing the arrangement or text wrapping when the browser is resized.

Flash

Adobe Flash (formerly Macromedia Flash) is a proprietary, robust graphics animation/application development program used to create and deliver dynamic content, media (such as sound and video), and interactive applications over the web via the browser.

Flash is not a standard produced by a vendor-neutral standards organization like most of the core protocols and formats on the Internet. Flash is much more restrictive than the open HTML format, though, requiring a proprietary plugin to be seen, and it does not integrate with most web browser UI features like the "Back" button unless a hyperlink is programmed to link a new html page from the Flash file, in which case the animation of the previous page would reset. However, those restrictions may be irrelevant depending on the goals of the web site design.

According to a study, 98% of US Web users have the Flash Player installed, with 45%-56% (depending on region) having the latest version. Numbers vary depending on the detection scheme and research demographics.

Many graphic artists use Flash because it gives them exact control over every part of the design, and anything can be animated and generally "jazzed up". Some application designers enjoy Flash because it lets them create applications that don't have to be refreshed or go to a new web page every time an action occurs. Flash can use embedded fonts instead of the standard fonts installed on most computers. There are many sites which forego HTML entirely for Flash. Other sites may use Flash content combined with HTML as conservatively as gifs or jpegs would be used, but with smaller vector file sizes and the option of faster loading animations. Flash may also be used to protect content from unauthorized duplication or searching.

Flash detractors claim that Flash websites tend to be poorly designed, and often use confusing and non-standard user-interfaces. Up until recently, search engines have been unable to index Flash objects, which has prevented sites from having their contents easily found. This is because many search engine crawlers rely on text to index websites. It is possible to specify alternate content to be displayed for browsers that do not support Flash. Using alternate content also helps search engines to understand the page, and can result in much better visibility for the page. However, the vast majority of Flash websites are not disability accessible (for screen readers, for example) or Section 508 compliant. An additional issue is that sites which commonly use alternate content for search engines to their human visitors are usually judged to be spamming search engines and are automatically banned.

The most recent incarnation of Flash's scripting language (called "ActionScript", which is an ECMA language similar to JavaScript) incorporates long-awaited usability features, such as respecting the browser's font size and allowing blind users to use screen readers. Actionscript 2.0 is an Object-Oriented language, allowing the use of CSS, XML, and the design of class-based web applications.

CSS versus tables

Back when Netscape Navigator 4 dominated the browser market, the popular solution available for designers to lay out a Web page was by using tables. Often even simple designs for a page would require dozens of tables nested in each other. Many web templates in Dreamweaver and other WYSIWYG editors still use this technique today. Navigator 4 didn't support CSS to a useful degree, so it simply wasn't used.

After the browser wars were over, and Internet Explorer dominated the market, designers started turning toward CSS as an alternate means of laying out their pages. CSS proponents say that tables should be used only for tabular data, not for layout. Using CSS instead of tables also returns HTML to a semantic markup, which helps bots and search engines understand what's going on in a web page. All modern Web browsers support CSS with different degrees of limitations.

However, one of the main points against CSS is that by relying on it exclusively, control is essentially relinquished as each browser has its own quirks which result in a slightly different page display. This is especially a problem as not every browser supports the same subset of CSS rules. For designers who are used to table-based layouts, developing Web sites in CSS often becomes a matter of trying to replicate what can be done with tables, leading some to find CSS design rather cumbersome due to lack of familiarity. For example, at one time it was rather difficult to produce certain design elements, such as vertical positioning, and full-length footers in a design using absolute positions. With the abundance of CSS resources available online today, though, designing with reasonable adherence to standards involves little more than applying CSS 2.1 or CSS 3 to properly structured markup.

These days most modern browsers have solved most of these quirks in CSS rendering and this has made many different CSS layouts possible. However, some people continue to use old browsers, and designers need to keep this in mind, and allow for graceful degrading of pages in older browsers. Most notable among these old browsers are Internet Explorer 5 and 5.5, which, according to some web designers, are becoming the new Netscape Navigator 4 — a block that holds the World Wide Web back from converting to CSS design. However, the W3 Consortium has made CSS in combination with XHTML the standard for web design.

How it Looks vs. How it Works

Some web developers have a graphic arts background and may pay more attention to how a page looks than considering other issues such as how visitors are going to find the page via a search engine. Some might rely more on advertising than search engines to attract visitors to the site. On the other side of the issue, search engine optimization consultants (SEOs) obsess about how well a web site works technically and textually: how much traffic it generates via search engines, and how many sales it makes, assuming looks don't contribute to the sales. As a result, the designers and SEOs often end up in disputes where the designer wants more 'pretty' graphics, and the SEO wants lots of 'ugly' keyword-rich text, bullet lists, and text links. One could argue that this is a false dichotomy due to the possibility that a web design may integrate the two disciplines for a collaborative and synergistic solution. Because some graphics serve communication purposes in addition to aesthetics, how well a site works may depend on the graphic designer's visual communication ideas as well as the SEO considerations.

Another problem when using lots of graphics on a page is that download times can be greatly lengthened, often irritating the user. This has become less of a problem as the internet has evolved with high-speed internet and the use of vector graphics. This is an engineering challenge to increase bandwidth in addition to an artistic challenge to minimize graphics and graphic file sizes. This is an on-going challenge as increased bandwidth invites increased amounts of content.

This guide is licensed under the GNU Free Documentation License. It uses material from the Wikipedia.

Website

2008-08-03T02:34:51-06:00

A website (alternatively, Web site or web site) is a collection of Web pages, images, videos and other digital assets that is hosted on one or several Web server(s), usually accessible via the Internet, cell phone or a LAN.

A Web page is a document, typically written in HTML, that is almost always accessible via HTTP, a protocol that transfers information from the Web server to display in the user's Web browser.

All publicly accessible websites are seen collectively as constituting the "World Wide Web".

The pages of websites can usually be accessed from a common root URL called the homepage, and usually reside on the same physical server. The URLs of the pages organize them into a hierarchy, although the hyperlinks between them control how the reader perceives the overall structure and how the traffic flows between the different parts of the sites.

Some websites require a subscription to access some or all of their content. Examples of subscription sites include many business sites, parts of many news sites, academic journal sites, gaming sites, message boards, Web-based e-mail, services, social networking website, and sites providing real-time stock market data.

As of March 2007 there are over 8 billion web pages in total on the World Wide Web. - Source

History

The first on-line website appeared in 1991. On 30 April 1993, CERN announced that the World Wide Web would be free to anyone.[1] A copy of the original first Web page, created by Tim Berners-Lee, is kept here.

Spelling

As noted above, there are several different spellings for this term. Although "website" and "web site" are commonly used (the former especially in British English), the Associated Press Stylebook, Reuters, Microsoft, academia, book publishing, The Chicago Manual of Style, and dictionaries such as Merriam-Webster use the two-word, initially capitalized spelling Web site. This is because "Web" is not a general term but a shortened form of World Wide Web. As with many newly created terms, it may take some time before a common spelling is finalized. (This controversy also applies to derivative terms such as "Web master"/"webmaster" and "Web cam"/"webcam").

The Canadian Oxford Dictionary and the Canadian Press Stylebook list "website" and "web page" as the preferred spellings. The Oxford English Dictionary began using "website" as its standardized form in 2004.

Bill Walsh, the copy chief of The Washington Post's national desk, and one of American English’s foremost grammarians, argues for the two-word spelling with capital W in his books Lapsing into a Comma and The Elephants of Style, and on his site, the Slot.

Prizes

The Webby Awards are a set of awards presented to the world's "best" websites, a concept pioneered by Best of the Web in 1994.

Notes and references

Cailliau, Robert. A Little History of the World Wide Web.
AskOxford: How should the term website be written in official documents and on the web?. Oxford Dictionaries Online.
The Slot—Sharp Points: Here We Go Again—Eeee!.

Links

This guide is licensed under the GNU Free Documentation License. It uses material from the Wikipedia.

Web design

2008-07-24T02:16:05-06:00

Web design is a process of conceptualization, planning, modeling, and execution of electronic media delivery via Internet in the form of Markup language suitable for interpretation by Web browser and display as Graphical user interface (GUI).

The intent of web design is to create a web site -- a collection of electronic files that reside on a web server/servers and present content and interactive features/interfaces to the end user in form of Web pages once requested. Such elements as text, bit-mapped images (GIFs, JPEGs, PNGs), forms can be placed on the page using HTML/XHTML/XML tags. Displaying more complex media (vector graphics, animations, videos, sounds) requires plug-ins such as Flash, QuickTime, Java run-time environment, etc. Plug-ins are also embedded into web page by using HTML/XHTML tags.

Improvements in browsers' compliance with W3C standards prompted a widespread acceptance and usage of XHTML/XML in conjunction with Cascading Style Sheets (CSS) to position and manipulate web page elements and objects. Latest standards and proposals aim at leading to browsers' ability to deliver a wide variety of media and accessibility options to the client possibly without employing plug-ins.

Typically web pages are classified as static or dynamic.

Static pages don’t change content and layout with every request unless a human (web master/programmer) manually updates the page.

Dynamic pages adapt their content and/or appearance depending on end-user’s input/interaction or changes in the computing environment (user, time, database modifications, etc.) Content can be changed on the client side (end-user's computer) by using client-side scripting languages (JavaScript, JScript, Actionscript, etc.) to alter DOM elements (DHTML). Dynamic content is often compiled on the server utilizing server-side scripting languages (Perl, PHP, ASP, JSP, ColdFusion, etc.). Both approaches are usually used in complex applications.

With growing specialization in the information technology field there is a strong tendency to draw a clear line between web design and web development.

History

Tim Berners-Lee, the inventor of the World Wide Web, published a website in August 1991.[1] Berners-Lee was the first to combine Internet communication (which had been carrying email and the Usenet for decades) with hypertext (which had also been around for decades, but limited to browsing information stored on a single computer, such as interactive CD-ROM design).

Websites are written in a markup language called HTML, and early versions of HTML were very basic, only giving websites basic structure (headings and paragraphs), and the ability to link using hypertext. This was new and different to existing forms of communication - users could easily navigate to other pages by following hyperlinks from page to page.

As the Web and web design progressed, the markup language used to make it became more complex and flexible, giving the ability to add objects like images and tables to a page. Features like tables, which were originally intended to be used to display tabular information, were soon subverted for use as invisible layout devices. With the advent of Cascading Style Sheets (CSS), table-based layout is increasingly regarded as outdated. Database integration technologies such as server-side scripting and design standards like CSS further changed and enhanced the way the Web is made.

The introduction of Macromedia Flash (now Adobe Flash) into an already interactivity-ready scene has further changed the face of the Web, giving new power to designers and media creators, and offering new interactivity features to users, often at the expense of usability for persons with disabilities, search engine visibility and browser functions available to HTML.

Links

This guide is licensed under the GNU Free Documentation License. It uses material from the Wikipedia.