CustomerCentrix

Where to start? There seem to be thousands, and I would guess that the vast majority are worthless or nearly so. Although free always sounds great, paying a few hundred dollars seems like a good way to quickly reduce the number of choices.

I have been on an e-newsletter for a few months by Brad Callen. Some good information here along with a bit of self-promotion. He has (or promotes) a product called SEO Elite that seems useful. My information has come primarily from the screenshots and description in the newsletter articles.

Another one is from a guy named Bruce Clay. There are actually several from this site, and it is a web site service rather than desktop tool. I guess the first part of my criteria is whether I can learn something useful from them just by reading an email or their web site. There is a decent article here that has some good info.