In the past we've mentioned tools like Long Tail Pro, and Marketing Samurai, but there is a new tool on the scene called P1 Tartgeting App. It's a pretty cool keyword app. It does the following:

You type in one word and it looks up tons of keywords
You can then look at the competition around such words
You can check domains that are available
You can sort by profitability
You can filter out the keywords that are less profitable

The pricing starts at $29 (up to $99), and once you sign up there will be an upsell for a content app, and (BUT WAIT THERE's MORE) there will be one last upsell for a targeting app. 
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