Niche social networks

CNN had an article today about smaller niche social networks. Large social networks like Facebook have groups for just about any interest. But because there are so many it can be challenging to actually find the perfect group for you.

Meanwhile, niche websites like Ravelry, a knit/crochet group, actually have a wait-list to join!

From Ravelry's website:

We're adding people to the site slowly so that we can keep our sanity! Each day, invitations are sent to the next 800 - 1000 people. There are currently 6,755 people waiting for their invites.

Apparently advertisers also love these niche social networks because it is very easy to target your ads to the appropriate audience.