I need some way to bulk add lots of twitter users to a list (Imacros, web based, software. Etc.) I've seen people adding me to a list alot lately, and they have to have some type of program to do it. because when I go on there list page there are 100+ lists with 4000+ people each. i really need to learn how to do this is there a site like tweepi or something that i don't know about?