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"Attention Brokerage" |


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"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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Enigma Machine
The Enigma Encryption Machine was famous for its insecurities as for the security that it gave to German ciphers. It was broken, first by the Poles in the 1930s, then by the British in World War II.
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