Branded niche sites allow people to find others sharing similar interests - books, or fitness.

And there are niche sites from just about every region and country that can provide more specifics on ethnic origins.

Additional specialized niche sites, mainly for games and musicians are entering the market.

Some successful niche sites pair people by race, sexual orientation or religion.

In addition to niche sites, there are more general sites for the online dating beginner.

That being said, niche sites by their very construction tend to be very small.

But even the niche sites are seeing some signs of life from bigger clients.

But niche sites for active older adults abound.

Without that conservative niche site, which I visit often, I would not have read his stuff.

As of March 2012, the network consists of 206 niche sites, with 2.7 million members.