• SEO Book – Aaron Wall’s search related blog, which sells the most current SEO ebook. Updated at least once a month so that it is perpetually current. Teaches both SEO and pay per click marketing.
  • Search Engine Marketing – Mike Grehan’s ebook about search engines. It is more about how search engines & search algorithms work than it is about how to do SEO.
  • Search Engine Marketing Kit – Dan Thies’s book about search engine marketing. His book is more business oriented and more geared toward selling services. Has information about running a business.