all of them actually loeokd very similar and functions just like dabr...although each of them have their own special features.. for instance, teamsar.net features profile editor, tweet translator and profile photo uploader.. with teamsar you can also select which type of photo sharing site you'd like to use (mobypic, twitpic, lockrz, etc.) slandr has a geolocation feature... tuitwit has a "who is nt following back feature..