Ask the SEO Guru    

Bob Massa of SearchKing fame spells it out for you in plain English with comments like, “I don’t do SEO. I do online business development, with traffic generation being one part of that” and content like, “The Basic Concepts of SEO“.

http://massa.techndu.com/

Ask Kalena    

Kalena Jordan offers search engine tips and advice

http://www.searchenginecollege.com/blog.htm

Ask.com Blog    

Official blog for Ask.com

http://blog.ask.com/

Apple Pie & Custard    

UK based Kelvin Newman, Eloi Casali and Damon Lightley from Site Visibility blog personal and professional insights into SEM, social media and PPC.

http://www.sitevisibility.co.uk/blog/

Apogee Weblog    

Richard Ball of Apogee Web Consulting blogs about search engine marketing, small business growth, web analytics and pixel advertising.

http://www.apogee-web-consulting.com/blogger/blog.html

AOL Search Blog    

The official search blog for AOL.

http://searchblog.aol.com/

Andy Beard    

Lives in Poland, runs his business from the UK and blogs about the search industry, blogging, niche and affiliate marketing.

http://andybeard.eu/

Amplify Interactive Blog    

Ben Lloyd, Christian Bullock and Kristin Wall write about fundamental search marketing tips, SEO, PPC as well as industry events.

http://www.amplify-interactive.com/blog/

Altogether Digital    

A group blog from the team at London based search marketing agency Altogether, which is a result of the merging of eyefall, DC Interact & Meme, blogs about SEO, PPC and affiliate marketing.

http://www.altogetherdigital.com/

A List SEO Blog    

This past restaurant industry veteran turned black hat SEO, Mark Laymon, writes uniquely about his approach to SEO, linking and marketing online.

http://www.alistseo.com/

About: Web Search    

Wendy Boswell covers the search engines for About.com.