This week is keyword research week on the PPC Hero blog, so it’s needless to say that I’m looking forward to each new posts they do. Today’s PPC Hero post got me really excited since it covers one of my favorite things - free SEO/SEM tools.

The list cover 4 different keyword tools that can help you expand your keyword list, research keyword volume and trends, and even identify a general cost-per-click for different keywords. All important things to understand before you start a PPC or SEO effort for a particular product or service.

Out of all of the tools I think the one I like most is Spyfu.com. Specifically, I really like the data they give on the CPC range for keywords – something I’ve been missing since Yahoo! went all “black box” with their Panama platform.

Make sure you read the full post, Expand Your Keyword List For Free: 6 Keyword Tools You Should Be Using (but probably aren’t), for a full rundown on what each tool can do for you.