Why You Should Have a Secondary Twitter Account
Techipedia: Tamar Weinberg
FEBRUARY 16, 2010
Let new prospects find you organically based on your messages and reap the rewards. HootSuite puts all the accounts in one single interface (you can do the same with TweetDeck and Seesmic, I believe), but in terms of passwords, I usually use KeePass to store them with other relevant account information.
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