Drup.org

Here are some helpful links:
http://www.thingy-ma-jig.co.uk/blog/04-02-2008/drupal-and-seo
http://www.smorgasbord.net/2007/06/29/drupal-seo-search-engine-optimizat...
http://ezinedesigner.com/ecommerce-seo-checklist.html
http://www.sprydev.com/podcast/episode6
Local search: http://www.volacci.com/seo-podcast
On Metatags: http://www.webmarketingnow.com/tips/meta-tags-uncovered.html
Google local: http://www.leveltendesign.com/blog/neil/seven-ways-raise-your-local-busi...

Daniel Zivkovic's presentation at TDUG: http://JasminaHomes.ca/docs/Drupal-SEM-Tips.pdf