SEO Checklist is a must have Drupal Module for all Drupal sites. It creates a checklist with handy links to the modules/settings that help make your Drupal installation as SEO friendly as possible.
Now I know what you might be saying... "I'm a Drupal expert, I don't need a module to tell me what modules I should be running." Well, I don't believe you. Even the most grizzled developer can forget to add a module or *gasp* not know every Drupal module in existence.
In this (19 part, gasp!) series I'll be covering the individual modules that SEO Checklist recommends and the why behind them (Disclamer: I'll be talking about what the module does, not the SEO methodology behind it. If you want background check out http://www.mattcutts.com/blog/ and http://www.sprydev.com/why-links-help-seo). I'll also provide step by step screenshots of how to configure the modules since some of them aren't the easiest to figure out.
Modules Covered (links to the individual post for the module will appear as the nodes are published)

• Find URL Alias
• Global Redirect
• URLify
• Pathauto (& Token)
• Google Analytics
• Excerpt Module
• Meta Tags (aka Nodewords)
• Scheduler
• Safe HTML
• Search 404
• XML Sitemap
• Digg This
• Service Links
• Trackback
• Captcha (& reCaptcha)
• Akismet
• http:BL
• Spam