I compiled a list of the Top 70 SEO Blogs and then I looked up the US Traffic estimates for each of them on Compete.com. These are the blogs with the most traffic.
Quick Note: If this list looks weird without the likes of Searchenginejournal.com, Searchenginewatch.com,Searchengineland.com, SEOChat.com, Clickz.com, Searchengineguide.com, or Emarketer.com, it’s because I’ve given those guys the enviable classification of SEO Trade Publications. They are ad-driven expo-promoting mega-blogs. They are awesome, but they’re also a little different than blogs.