Shortened URLs are great for character-conscious Tweeters, marketers who want to track Web site visitors, and even perhaps an opportunity for venture capitalists who are investing in companies such as Bit.ly.But they are also providing a boon to spammers.MessageLabs, a division of Symantec, said today the presence of shortened URLs in spam had skyrocketed over the last few days and now appears in more than 2 percent of all spam.
http://bits.blogs.nytimes.com/2009/07/07/spammers-shorten-their-urls/
Spammers Shorten Their URLs
Shortened URLs are great for character-conscious Tweeters, marketers who want to track Web site visitors, and even perhaps an opportunity for venture capitalists who are investing in companies such as Bit.ly.