This is a helpful roundup of free SEO tools. Nice job KISSmetrics.
I’ve used all of these search engine optimization tools for regular and local search optimization and I can vouch for their usefulness.
I didn’t learn about authoritylabs.com for keyword rank tracking until recently when an SEO friend of mine recommended them. Authoritylabs.com’s free solution is perfect for an average small business where you have one domain to track and a relatively small number of major keywords.
Give these a try if you haven’t already.