Mutual Funds Companies Embrace Twitter, Facebook

"Fidelity, Vanguard, Putnam and Charles Schwab are among those using Twitter for customer service and corporate marketing. 'We view it as another tool in the chest, and a very important tool,' says Richard Blunck, executive vice president at Fidelity. Fidelity began tweeting in October, and has about 3,000 followers, Blunck says."