Aaron Wall offers some ways to track your competitors (and yourself) using tools of the trade.
Matt McGee tells us how to do SEO in 60 minutes.
Oldies but Goodies:
Jim Boykin gives us the ultimate SEO toolbelt on his SEO tools page.
Micheal Gray on the oft overlooked basics of link building.
Andy Hagan gave up the guide to link baiting.
SEOmoz tells us the tale of 30 social media sites
Patrick Sexton of SEOish put together ways to market your website for 100 dollars (yeah, i know that is me, but it is useful).