I just really want to stress the gold mine that Google Trends can be in this thread.
For example. I was goofin' around last night testing a word with Trends. And in less than 10 hours that one word has pushed over 1000 uniques. Targeted traffic and it took literally 5 minutes worth of work.
Google Trends + a well placed offer + some creative thinking can = $$$ Almost any time you want.
Trends can be a great starting place for newbies to get their feet wet with targeting keywords for traffic.
Because you don't have to think of a word. You know that word has people searching it. And a lot of the times the keyword you find has very little competition.