Twitter introduces Lists, a way to form groups and track follow lists of associated people.
Twitter Lists is a brand-spanking-new feature that allows you to follow groups of Twitter users that are compiled in various lists. This lets you to follow segments of Tweeple that share an affinity and create your own Lists for others to follow.
You can create a List for your fav bloggers, your family, your jilted ex’s…you name it. Because the latest tweets of everybody on the List are displayed in real time, Lists is a great way to get an overview of what a group of related people are talking about.