Check Google for the term "typosquatting"... or here, let me direct you to:
""Typosquatting" -
the intentional misspelling of words in domain names to siphon off Internet traffic from its intended destination - can lead to loss of the misspelled domain names and legal findings of bad faith. This was the result in the recent case National Association of Professional Baseball Leagues vs. John Zuccarini with respect to the domain name minorleaugebaseball.com, which contains a commonly made misspelling, and which caused Internet traffic to be directed to a pornographic Website."
http://www.multilaw.com/Template.cf...&ContentID=2007
And that's just one example...