Google went ahead with the start of its controversial stock auction as planned yesterday.

But the row over the founders’ interview with Playboy magazine refused to go away. The company was forced to take the unprecedented step of amending its prospectus to include a copy of the article — believed to be the first time a Playboy item has become part of the Securities and Exchange Commission record.

Google also had to clear up several errors made by Sergey Brin and Larry Page in the piece.more…