This is not an exhaustive list. These individuals or companies are considered trend-setters, early adopters and thought leaders in their space.
What other Twitter accounts and serious players in category “Internet Marketing” do you think should be followed or at least considered? And, how do you determine their authority and quality (to be added to the list)? Hat tip to Rich Page for seeding the list.
Andy Beal (Marketing Pilgrim)
http://twitter.com/andybeal
Seth Godin
http://twitter.com/SethGodin
Search Engine Roundtable
http://twitter.com/seroundtable
Rand Fishkin (SEO Moz)
http://twitter.com/randfish
Mike Buonomo
http://twitter.com/SearchBuzz
Search Marketing Gurus
http://twitter.com/smgurus
Fumi Mastubara
http://twitter.com/newmediazoo
Copy Blogger
http://twitter.com/copyblogger
Eric Friedman
https://twitter.com/EricFriedman
Danny Sullivan
http://twitter.com/dannysullivan
Duct Tape Marketing
https://twitter.com/ducttape
Barry Welford
https://twitter.com/BWelford
Search Engine Guide
http://twitter.com/SEGuide
Craig Ritchie
https://twitter.com/craigritchie
Doug Hudiburg
https://twitter.com/dhudiburg
Gator Herb (Marketing Sherpa)
https://twitter.com/gatorherb
The Product Guy
https://twitter.com/theproductguy
Search Marketing Gurus
http://twitter.com/storyspinner
DJ Francis
http://twitter.com/DJFrancis
Newspaper Girl
http://twitter.com/NewspaperGrl
