Maybe some of you have already tried this one: http://www.google.com/sktool/# But what I'm seeing is that there are some product based keywords that I had completely missed during my regular keyword research which this tool was able to discover and more very moderate bids. Has anyone else had luck with this tool?
SKTool is very handy, especially for large sites. There's a version of it built in to AdWords Editor that's also handy (look for 'keyword suggestions', then it's the rightmost tab), but I only use it for smaller sites. My favorite thing about SKTool is that you can very quickly find a vast number of unique landing pages with get associated keywords. Then you can convert each landing page into an Ad Group and have very focused groups. This makes for much higher Quality Scores, cheaper clicks, higher CTRs, and you end up in a "beneficial cycle" with AdWords. Great stuff! Here's a book focused on SKTool you might find useful: adwordsevolved.com/r.php -glenn
Someone pm'd me asking about the bids on sktool suggestions. The bids are usually higher what google suggests so you can discount them and then bid.