Followers: 1.6 million
Sample tweet: "$369.99 : HP 17.3" Intel Dual Core Notebook : LAST CALL http://www.woot.com"
Before there was Groupon, there was Woot. The website's policy? One deal, one tweet per day, with coveted discounts on electronics or computer hardware products. Woot also has channels that offer one T-shirt per day, five selections of wine per week and one children's item per day. Great for gadget geeks, and it won't clutter your feed either.