Google informally notified Adsense Publishers that the number of competitive ad filters that could be put in place per account has now doubled to a maximum of 500.
Per Adsense Advisor in a Webmaster World thread, Google chose not to announce it on the main blog because "we don't want to overload our system with everyone filling their filters to capacity at once."
Competitive ad filtering works (in theory) in this way. Publishers filter out URL that they believe are not relevant...
April 8 2009, 10:46am | Original Link »
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