In Doubleclick’s “The European search advertising landscape, 2006†report, they note that (excerpts):
“Google dominates the continent
Google dominates the search market in Europe, and this is especially true so outside the U.K. In Germany, Google’s market share approaches 90%. “The game in Europe is Google,†declared Andy Atkins, CEO of WebCertain…Google sites are also visited by a greater proportion of visitors in Europe (75%) than in the US (60%)…in July 2006, Google sites were the most visited online destinations in Europe with over 150 million unique visitors in that month. The dominant search engines in Europe are also the largest media owners—Google, Yahoo and MSN…The European online ad market is concentrated in the hands of a few major players.â€
Research report press release
available as pdf via Google UK homepage