One of the best methods for learning SEO (Search Engine Optimization) is simply through YouTube.  Matt Cutts has released a great set of SEO Video Blogs that will help you with your knowledge on increasing SEO.  Of course everyone wants the best SEO (= also traffic).

• Quality of a Good Site – 5 minutes and 40 seconds
• Myths, Large Site Launches, and Google Images – 4 minutes 10 seconds
• Optimize for Search Engines or Users? – 4 minutes and 25 seconds
• Static vs. Dynamic urls – 4 minutes and 30 seconds
• How to structure a site? – 4 minutes and 46 seconds
• Supplemental Results – 4 minutes and 12 seconds
• Does Webspam use Google Analytics? – 5 minutes and 11 seconds
• Google Terminology – 4 minutes and 40 seconds