[KCat]

I'd really like to stick to just one niche so that I could really do it well - spend all of my content dollars in that one area, focus on building niche traffic hubs etc. But when it comes to picking the niche I find it hard to figure out the balance between what is underrepresented on the net (or even if there are a lot of sites, but they're done really poorly) & what is a popular enough niche to make it worthwhile.

I could have the BEST Asian BBW foot fetish site on the market, but if the market for that site is too small, I would've been better off having an almost unheard of teen site.

Other than overture search results, how do you do market research to determine how popular a niche is?