If you are interested on SEO, And want to study about SEO articles then it is much more important for you to read this articles of Stoney deGayter.

Stoney deGeyter is the President of Pole Position Marketing, a leading search engine optimization and marketing firm helping businesses grow since 1998. Stoney is a frequent speaker at website marketing conferences and has published hundreds of helpful SEO, SEM and small business articles.more....

All articles of Stoney deGeyter on searchengineguide are available here