Good
http://www.sitesuite.com.au/page/community.html
This guide looks pretty definitive, read it when theres time. seems keywords meta tags arent very useful anymore. description tag is good because it sometimes shows up in a search engine under the title big link. but over all, test content is what is indexed and the title tag is very important.
http://searchenginewatch.com/showPage.html?page=webmasters
Blog about SEO and blogging etc etc
http://www.mccordweb.com/weblogs/index.php
Blog about SEO but more funny
http://www.davidnaylor.co.uk/
Googles webmaster central docs blog help etc
http://googlewebmastercentral.blogspot.com/
Web design blog - good step by steps
http://imgiseverything.co.uk/2007/10/01/nike-trainers-a-keyword-case-study/