Can I help you? On Twitter, the answer is no.

We put customer service to the test at companies from Zappos to Delta to Bank of America, asking for help over Twitter, on the phone, and on the web. The results were surprising.

How a late-night Luddite accidentally fought his way back into bedrooms (and computers, smartphones, and tablets) across America. More
Insight Venture Partners recently told the SEC that it had closed on approximately $1.05 billion for its seventh fund. More
Has Apple built a smaller, cheaper smartphone that is carrier independent? More
More Galleries
50 years of the Ford Mustang Take a drive down memory lane with our favorite photos of the car through the years. More
8 CEOs who took a pay cut in 2013 Median CEO pay inched up 9% in 2013 to $13.9 million. But not everyone got a bump last year. Here are eight CEOs who missed out. More
10 best convertibles now that spring has sprung It's finally time to put the top down. Here are our 10 favorite rides for the warmer months to come. More
Market indexes are shown in real time, except for the DJIA, which is delayed by two minutes. All times are ET. Disclaimer LIBOR Warning: Neither BBA Enterprises Limited, nor the BBA LIBOR Contributor Banks, nor Reuters, can be held liable for any irregularity or inaccuracy of BBA LIBOR. Disclaimer. Morningstar: © 2014 Morningstar, Inc. All Rights Reserved. Disclaimer The Dow Jones IndexesSM are proprietary to and distributed by Dow Jones & Company, Inc. and have been licensed for use. All content of the Dow Jones IndexesSM © 2014 is proprietary to Dow Jones & Company, Inc. Chicago Mercantile Association. The market data is the property of Chicago Mercantile Exchange Inc. and its licensors. All rights reserved. FactSet Research Systems Inc. 2014. All rights reserved. Most stock quote data provided by BATS.