Lately I've been reading a lot on
Drecom's ad4u targeted ad technology in Japan. Ad4u has been somewhat on the Japanese web radar for its controversy over invading user privacy.
So what is ad4u? Drecom is currently keeping the exact details of this technology a secret (awaiting patent in Japan) but the concept is very simple. Ad4u uses javascript to analyze user's browsing history and then displays relevant ads based on this information. For…
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