Can someone please explain twitter lists to me?

[Elles]

I've had twitter for a while now but don't understand what a list is or what the point of it it. I always see people with lists, is it like groups and what does it actually do if anything?

My twitter is @ElliesaysHaii if anyone wants it
Myspace is dead and facebook is shitty lol

[dsf]

Here is the official page from twitter:
http://support.twitter.com/articles/7646...tter-lists

There is no point in anything you can think of, is other people's actions that give meaning to the pointless stuff.