I know you are used to long topics from my part, but unfortunately there is not much to be said here... :P

I made a thread some time ago about SEO Tools, now it is time that I share with you guys (and gals) my list of the best websites about Search Engine Optimization

Strictly (and pure) SEO:
  1. First, the more than famous Aaron Wall's SEOBook
  2. Jill Whalen's High Rankings (the forum)
  3. SEO-News
  4. SiteProNews' seo section
  5. SEO Chat

To learn more about SEs:
  1. http://forums.searchenginewatch.com/
  2. http://searchengineland.com/

Advanced SEO:
http://www.bluehatseo.com/ this site is extremely accurate!

Feel free to add your own.