wikimedia.org, wikipedia.org, wikipedia.de and wiktionary.org are on the IE8 compatibility blacklist again (you can check by opening res://iecompat.dll/iecompatdata.xml in IE8 or at http://ie8blacklist.appspot.com/ ), which means that IE8 renders Wikipedia pages just as IE7 would. I see no obvious difference when switching into IE8 standards mode. Does someone know the reason for the blacklisting? If not, could someone from the foundation ask them to remove these sites from the list? (Information on removal requests can be found at the end of this article: http://msdn.microsoft.com/en-us/library/dd567845%28VS.85%29.aspx )