gaspamfighter.com
Google Analytics Spam Fighter by Anchor MetricsAutomatically filter out 422 spam sites from Google Analytics. Thursday, October 29. Added 17 more sites to the blacklist. Updated maximum daily uses to 10. Fixed bug causing daily uses not to reset. Created a SWEET NEW BADGE. That you can add to your site! Wednesday, July 24. Added almost 250 new sites to the spam blocker thanks to great user contributions and working with the guys at SpamScape. Updated the tool to search for filters already linked to that profile and not send new linking requests.
http://www.gaspamfighter.com/