This looks like true story, but might be Google – Yahoo battle. Anyway, it is nice to read story about Google at Yahoo: Google mistakes own blog for spam, deletes it – Yahoo! News. It says:
Readers of Google’s Custom Search Blog were handed a bit of a surprise Tuesday when the Web site was temporarily removed from the blogosphere and hijacked by someone unaffiliated with the company.
The problem? Google had mistakenly identified its own blog as a spammer’s site and handed it over to another person.
The change was first noticed by the Google Blogoscoped Web site, which noticed that posts on the Custom Search Blog had been deleted and replaced by a strange comment from someone identifying himself as Srikanth.[…]