"Twitter has taken a stand against those spamming their popular micro-blogging service by filing a lawsuit in a federal court in San Francisco against five of the most prolific spam tool providers, and the people that use them to flood the service with junk messages.
The five named in the suit are TweetAttacks, TweetAdder, TweetBuddy, James Lucero and Garland Harris. All five are alleged to have violated the popular social networking sites rules by building and distributing tools designed to spam .
According to the filed paperwork, the total cost of combating these five spammers has incurred bills of at least $700,000, with $300,000 of that figure dedicated to combat TweetBuddy spamming efforts alone."