When Aaron Wall started in the search industry in 2003, he was an unknown entrepreneur. He taught himself search engine optimization and went on to write a book called SEO Book.
He sold his book over the Internet in the form of an instantly-downloadable ebook (in PDF form).
SEO Book became famous in SEO circles and online marketing circles.
Fast forward 5 years. SEOBook has evolved from an ebook sold for $79 each, into a training course and private subscriber community. Read the full article