SEO guru and Google representative, Matt Cutts has put together some short videos in which he answers questions about search engine optimization.

Session 1 - Qualities of a good site
Session 2 - Some SEO Myths
Session 3 - Optimize for search engines or for users?
Session 4 - Static vs. Dynamic URLs
Session 5 - Site Structure
Session 6 - Supplemental Results
Session 7 - Webspam
Session 8 - Google Terminology
Session 9 - Datacenters
Session 10 - Lighting Round
Session 11 - Reinclusion requests
Session 12 - Tips for Search Engine Strategies (SES) 2006
Session 13 - Google Webmaster Tools