The company has begun testing the Lists service following ‘frequent requests' from users for better ways of organising information on the microblogging platform.
The tool, which is currently being tested among a small subset of users in the US, will allow you to group Twitterers into lists, allowing other microbloggers to follow everyone in that list with a single click of the mouse.
For example, "Twitter Lists project lead Nick Kallen writes on the company blog "you could create a list of the funniest Twitter accounts of all time, athletes, local businesses, friends, or any compilation that makes sense."
Brands would also be able to take advantage of the service to create lists of ‘advocates' that they could recommend to other users, replicating the Facebook Fan Page service.
Twitter plans to make the Lists API available to outside developers so they can create variations of the service and integrate it into their own apps. This could have significant implications for existing Twitter apps such as Tweetdeck, Tweetie and Seesmic.