Twitter "Lists"

I have just started following some twitterers that have created genealogy lists. "Lists" are a new feature of Twitter, and I have no idea what they're all about, but, if it puts me in contact with more genealogists faster than following them individually, then I guess it's a good feature.

To create a new list, you go to your Profile page on Twitter. There is a drop-down box of your lists in the lower right corner:


To see the people with lists that are following you, just select the "listed" and a page of lists opens,


with the members with lists who are following you and the lists that you are following.


There is a section in the right sidebar of your Twitter home page with a collapsible Lists that you follow.
You can view the List page of the members and see all of the lists that they created.

I don't know how Lists is different from Twibes, but I'll try it and see if there are any advantages.