Uppps, almost forgot to show you this website, SEO tips from Codex WordPress.

They tips are: Good, Clean Code , Content Talks , Write Your Content with Searchers in Mind , Content First , Keywords, Links, and Titles Meet Content , Content in Links and Images , Link Popularity , Good Navigation Links.

The rest show us this table of contents:

1 Search Engine Site Submissions
2 Search Engine Optimization Resources

2.1 Meta Tags
2.2 Robots.txt Optimization

2.2.1 See also:

2.3 Feed Submissions
2.4 Technorati Tags
2.5 Permalinks
2.6 Sitemaps
2.7 Google Sitemaps
2.8 Link Relationships
3 More Resources and Tutorials
4 Translations

You can read full text here: Search Engine Optimization for Wordpress.