Search Engine Marketing 101
I found this 101 Guide on SearchEngineWatch.com. I think it covers a lot of topics on how to improve search engine rankings.
This Webmaster's Guide To Search Engines is primarily for webmasters, site owners and web marketers. It covers search engine submission, optimization, and marketing issues. It explains how search engines find and rank web pages, with an emphasis on what webmasters can do to improve their search engine rankings by properly submitting, using better page design, and other tips.
If this is your first visit, it's recommended that you read the pages in this section in the order shown. That will best introduce you to the important concepts of search engine optimization. Navigational links at the bottom of each page will allow you to easily load the next one.
Essentials of Search Engine Submission Optimizing for Crawlers Optional but Helpful