Sometimes we have a Brilliant Idea for a Niche and rush out and buy a domain and build a website and well for one reason or another  it turns out not to have been such a good idea. Well why not test your idea on Squidoo, you can have a site up in 20 minutes or so? They no longer allow spammy sites but if it is a genuine subject and you have real content you can test the waters and see what Niches take off immediately or gradually and also perhaps most importantly whether you personally have a real interest in the Niche.

Here are some of my niches that that have proved themselves on Squidoo (sometimes after a long time)

Join Squidoo for totally  free here