1. The Moz Blog
Blog: http://moz.com/blog
Twitter: @moz

2. Search Engine Land
Blog: http://searchengineland.com
Twitter: @sengineland

3. QuickSprout
Blog: http://www.quicksprout.com/blog/
Twitter: @neilpatel

4. YouMoz
Blog: http://moz.com/ugc
Twitter: @moz

5. Search Engine Watch
Blog: http://searchenginewatch.com
Twitter: @sewatch

6. Search Engine Journal
Blog: http://www.searchenginejournal.com
Twitter: @sejournal

7. Bruce Clay
Blog: http://www.bruceclay.com/blog
Twitter: @BruceClayInc

8. Neil Patel Blog
Blog: http://neilpatel.com/blog/

9. MySiteAuditor Blog
Blog: http://mysiteauditor.com/blog
Twitter: @mysiteauditor

Read more: http://mysiteauditor.com/blog/top-40-seo-blogs-to-read-in-2014/