Duncan Riley of Medacity claims they are:
Technology publisher Ziff Davis is offering money to tech sites to secretly track their users, Medacity has learned exclusively.
The publisher is pitching the “Ziff Davis Tech Co-Op” as “a closed door invitation only club of some of the best tech sites (publishers, etailers, affiliates) on the web that share audience information anonymously within the Co-Op” (emphasis is ours.)
There are three parts to club membership: the offer of publishing rights to Ziff Davis content, some limited advertising opportunities, and the core of the club: data sharing.
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