My niche not on Clickbank?

I can't seem to find many clickbank affiliate links for my niche. I was wondering if there were other sites like clickbank that I could check. My niche is a steadily growing one and a few college buddies and I wanted to put up a site and try and make some money from doing reviews. Any help would be appreciated. Thanks.

Simple. Just go to offervault and pick a product/service best suited for your niche!