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Buyouts, bum guidance, and a broadening decline for a one-time tech titan top the week in review. Go inside the stories that prompted this week's big buys and sells in the nexus between Wall Street and Silicon Valley.

There are several stocks out there that seem expensive, but only in the rearview mirror -- especially shares of fast-growing tech firms, or companies that do great business overseas. Read on to find out how to spot a stock worth buying.

There are now tens of millions of fantasy football players, hoping that dissecting the latest details on Peyton Manning's neck or the quarterback situation in Jacksonville will give them an edge over other friends in their leagues. Sounds a lot like investing, doesn't it?

Monday morning's news that Google purchased Motorola Mobility has not gone over so well with investors. And while there's no question that Google is one of the best tech stocks around, it's far from the only one. Consider a search site that poised for big growth: China's Baidu.

Baidu's third-quarter profit more than doubled, year over year, as online advertising surged. The company also benefited from increased market share after Google closed its China-based search engine in March.

Google may pull out of the Middle Kingdom after discovering that hackers tricked human rights activists into opening their email accounts to outsiders. As a first step, the search giant says it will stop censoring its search results in the country -- a major turnabout for Google.

Baidu (BIDU) -- the Google of China -- took a major stock market beating Tuesday, as investors bailed out following the company's warning that revenue may fall while it rolls out a new advertising system. On Monday, Baidu announced a 42 percent jump in third-quarter profit, beating analysts'...