Although there are many SEO blogs on the Web, there are none quite like the SEO Theory SEO Blog, where one of the field's leading innovators opens up and explains in great detail some of the secrets of his success.

But don't lose faith in the master. Michael isn't sharing everything he knows. Which just makes you wonder what gems he is holding back.

"It generally takes me about two years to figure out how to stabilize an idea," Martinez says in one of his more popular posts to date, Walking With SEO Gurus: How Not To Get Trampled.

"You and I are just collateral damage," he tells his readers in another important post, Why you now have Supplemental Pages in Google.