"Attention Brokerage" is one of the latest developments in the field of online advertising. The first Web-site applying the concept of selling and buying attention is Cybergold. Users, who want to earn money have to register and then look at ads, which, of course, they have to prove by e.g. downloading software. Attention, according to this idea, represents a good, which is worth being paid for.
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TCP and IP are the two most important protocols and communication standards. TCP provides reliable message-transmission service; IP is the key protocol for specifying how packets are routed around the Internet.
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