Lycos Top 50 – http://50.lycos.com
The Lycos Top 50 is another site, like Google Zeitgeist, where I will review the latest trends and look for hot topics to explore further. I will also look at Yahoo! Buzz for ideas as well (see below).
Yahoo! Buzz – http://buzz.yahoo.com
eBay Pulse – http://pulse.ebay.com
The eBay Pulse site is a great place to start looking at sub-niches. What I will do is select the category first (using the topics I’ve gathered from looking at the previous sites), then look for profitable sub-niches by then selecting a sub-category.
The best chance for success is if I am as specific as possible with my niche selection. In the example below, I don’t want to sell to the “crafts” niche.
I want to sell to grandmothers who enjoy giving their latch rug hooking gifts to their families and friends. Whatever. You get the idea.

Also, I’ll always check the largest stores as well to see what they’re selling. There has to be a reason they are the largest stores. They must be doing something right.
eBay also puts out a PDF report of their hottest categories each month, available at