Loyaltyware is a sub-category of adware. It works around the notion of user "loyalty" by providing incentives in the form of cash, points, airline miles, or other type of goods while shopping. Examples include WebRebates, Top Moxie, and Ebates Moe Money Maker.
The card game auction bridge was developed from straight bridge and was a predecessor to contract bridge. Around the same time five hundred was created by the United States Playing Card Company in 1904.
