Research In Motion stock price

10 of Wall St.'s Biggest Losers This Week

This week was another volatile one for investors. Among the 10 biggest losers were the country's largest digital video service provider, recent IPOs specializing in edgy headphones and online dating in China, and even a smartphone company with 70 million subscribers. Recognize any stocks you own in here -- or some you might like to buy?

Last Week's Top Tech News

Buyouts, bum guidance, and a broadening decline for a one-time titan made up the top tech news this week. Here's a closer look at two stocks that soared and two that soured.

RIM Unveils BlackBerry Social Music Service

Research in Motion needs a hit, badly. The once-formidable smartphone maker has been dominated by Apple and Google of late. Is its new social music service well-crafted enough to attract the young customers the company so obviously covets?