Which are the biggest Sellers/Content creator groups ingame?

Im looking for groups of Shop owners, content creators and all the kind of groups related to the retail business in SL.

Since the search functionality isnt functioning very well, im asking here.
Thanks.

Actually no need to be the biggest, just dont post inactive groups.

There is a new group called Fashion Consolidated that is growing rapidly and is a forum for clothing, hair, and jewelry/accessory designers to post updates and notices of new products. There is also a group called Fashion Emergency which is intended to be a place to ask questions like "where can i buy thus-and-such" and is comprised of lots of consumers and sellers in SL fashion.

Best of luck!
Mystikal Faddoul