Robin Good: Matthew Fields has published a really good guide on SocialMediaChimps for anyone who wants to get serious in using Twitter for reputation-building and marketing purposes.
In the illustrated article he showcases four key concepts and many small tips and tools that helped his own account (the SocialMediaChimps one) get more than 10k followers in less than 90 days.
Useful. 8/10
Full article: http://socialmediachimps.com/2012/get-followers-on-twitter/