Search engine optimization (SEO) is the art and science of publishing and marketing information that ranks well for valuable keywords in search engines like Google, Yahoo! Search, and Microsoft Live Search.
Update: New file includes many new additions from suggestions made in comments.
In an effort to return to my roots, I spent the majority of the day compiling what I believe to be the mother of all technical SEO cheat sheets. The recommended viewing format of this cheat sheet is as a PDF rather than the traditional blog post (I found the blog posts inconvenient to print)...
On February 26, 2009, Google software engineer Matt Cutts collected questions on Google Moderator and answered many of them on video. Kevin from Marseille, France asked: Will SEO still exist in 5..