"Strider Typo-Patrol: Discovery and Analysis of Large-Scale, Systematic Typo-Squatters
First Posted: 12/16/2005
Last Updated: 03/11/2006
Update 03/09/06:
· We plan to release a light-weight version of the Strider Typo-Patrol tool so that trademark owners can have an automatic and systematic process of discovering typo-squatting domains of their web sites and a low-cost and effective solution to take actions against trademark-violating typo-squatters. If you own one of the top 100,000 traffic domains according to Alexa and are interested in such a tool, please email tppatrol (at) microsoft.com with the names of the web sites that you own. "
http://research.microsoft.com/SM/Strider/Typo-Patrol/