Click Rate for Organic Rank Positions Click rate for different natural search rankings from AOLs search data around 2006 and why the SEO industry is growing quicker than other marketing outlets.
Search is Social Search is social because the web has been social from it's inception. The more active you are around the web the more traffic you'll get and the better your rankings will be.
Site Audits are a Good Intro to SEO Site audits can be a cheap and easy way to get started with SEO.
Canonical Tag is Useless Canonical tag is a must in terms of 'best practices' but mostly it's a way for search engines to put an end to all the duplicate content questions.