"Google and DoubleClick were not exerting major competitive constraints on each other's activities and could, therefore, not be considered as competitors at the moment," it said.
Google has by far the strongest position in Web searching in Europe. That gives it an edge on the simple ads it sells which appear on its search pages.
DoubleClick deals with fancy display ads which show up on many kinds of Web sites. It supplies advertising technology that allows Web site publishers, advertisers and ad agencies to deliver online brand advertising to Web users. It also delivers ads to mobile phone callers and electronic billboards.