SitePoint Resources
Online Marketing Inside Out (ebook)
Laying the Foundations of SEO Success
Search Engine Marketing: What Every Online Business Needs to Know
Promotion Websites
Promotion World
Search Engine Watch
Promotion Newsletters
Add Me Newsletter
Search Engine Watch (newsletters)
Trafficology
Site Analysis Software
AddMe.com
Backlinkwatch
Google Analytics
Moz
Web CEO
WebPosition
Wordtracker