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Microsoft has gained on Google in search engine rankings -- if only by a little. But it is taking advantage of the momentum by launching a new Bing shopping product for phones and computers.

Yahoo may be considering selling off its stake in joint venture with Japanese Internet giant Softbank. What would it do with the $8 billion?

A little late to the social media party, JPMorgan plans to invest $450 million in Twitter to buy a 10% stake of the social media company.

The Justice Department and Federal Trade Commission have launched an antitrust investigation into Apple's new media store, amid concern that the company will use its leverage in the multimedia device market to undermine competition.

Google, its rivalry with Apple ever growing, has opened its own online digital content store -- Google One Pass.

Sprint is about to launch a dual-touchscreen smart phone that mimics a tablet. Do consumers really want something so complex?

Microsoft has definitively denied that its Bing search engine takes its cues from its rival. Nonetheless, the Google allegations highlights the challenges Microsoft faces in addressing the "long tail" market in search, or the obscure searches that collectively account for a huge portion of search traffic.

The IRS is introducing a smart phone app that will allow users to access helpful tax information, as well as monitor refunds.

Better-than-expected earnings from General Electric helped lift the Dow and S&P 500. The Nasdaq closed lower after disappointing results from chipmaker Advanced Micro Devices. Overall, the week's strong earnings bode well for coming corporate reports.

The tablet market is expect to dominate PC sales for a number of years to come, but forecasts about consumer electronics products are often wrong. It was only two years ago that the industry and researchers expected netbooks would become the growth sector of the market. That turned out to be way off.