Thanks to the Guys at http://www.Mashable.com twitter: @mashable for tracking down the head honchos of twitter action from 40 different companies and getting the word out on how they use Twitter.
Not terribly surprising Major companies are using twitter largely for customer service. this is one of the only locations you can respond to a disgruntled customer directly and quickly without them actually complaining directly to you.
Also they are using twitter only short term specials like 3 day on-line sales (@americanapparel) and flavor alerts (@tastidlite
read through the full list here: http://mashable.com/2009/01/21/best-twitter-brands/
You should find some good inspiration for how to start tweeting your way to deeper customer relationships and more fans!
Filed under: Customer Love, Internet Marketing, Social Media Marketing, Twitter , american apparel, Customer Love, Customer Service, Internet Marketing, Marketing on Twitter, Mashable, Tastidlite, Twitter, Twitter for Business