"A bug in Blogger enabled an unauthorized user to make a fake post on the Google Blog last night, claiming that we've discontinued our AdWords click-to-call test. The bug was fixed quickly and the post removed. As for the click-to-call test, it is progressing on schedule, and we're pleased with the results thus far."
that's what google said in google blog to explain the hacking of their official blog last night; this is the copy of the fake post published on googleblog:
Google Click-to-Call project cancelled
After concientiously considering, Google has decided not to continue with Google Click-to-call project. The project has been in the media on last days because of the notice of Google agreement with e-Bay. We finally consider click-to-call agreement with e-Bay a monopolistic aproach that would damage small companies in the CRM area.
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