Facebook is now the largest social network in 9 of the top 12 European countries

comScore data for February 2009 shows that Facebook is the largest social network in 9 of the top 12 European markets as measured by unique visitors - UK, France, Spain, Italy, Belgium, Sweden, Norway, Denmark & Finland. In Austria Netlog is larger (but Facebook is only 25,000 visitors behind), in Germany StudiVz (including SchuelerVz) is larger, and in the Netherlands Hyves is lager. Facebook is 2nd in all of these markets apart from Germany, where it is fourth behind StudiVz sites, wer-kennt-wen, and MySpace.
Source: comScore MediaMetrix February 2009 data, analysed by Isobar