Sure. Get some stats, and try to analyze. Use keyword suggestion tools like one, here on dp, or in google adwords. google trends is very useful tool also.
You are interested in Google Hot Trends, Yahoo Buzz, Ebay Pulse or read my netvestor blog under research catagery
Good suggestions! You can also use the search in Firefox and it will suggest terms as you type the letters in. Finding your niche keywords.
I have just join this forum and it have proven helpful. For starters, i'll check the tools out for sure.