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Shares of software giant Microsoft (NASDAQ: MSFT) fell on Friday after Chief Executive Steve Ballmer, said analysts' revenue predictions for Windows Vista were a 'little overly optimistic.'

Shares of Network Appliance, Inc. (NASDAQ: NTAP) rose Thursday, following a strong third quarter and upgraded estimates from an investment bank.

Dell Inc. (NASDAQ: DELL) hired Solectron Corp. (NYSE: SLR) President and CEO Michael Cannon on Thursday for the newly created position of president of global operations. The appointment is effective immediately.

Shares of RealNetworks (NASDAQ: RNWK) plummeted Thursday, following disappointing 2007 guidance announced with its fourth quarter earnings.

GPS and consumer electronics maker Garmin Ltd (GRMN) soared today after reporting that fourth-quarter earnings more than doubled from a year ago.

Time Warner Inc. (NYSE: TWX) is getting out of the baseball business and, as of Tuesday, the Atlanta Braves' new owner is Liberty Media Corp (NASDAQ: LCAPA), according to reports.

A strong quarterly report by network equipment maker Cisco Systems (NASDAQ: CSCO) provided strength in the technology sector Wednesday, and German chipmaker Infineon's (NASDAQ: IFX) deal with Nokia made it one the top tech movers of the day.

Transmeta Corporation (NASDAQ: TMTA) announced that the company is streamlining its operations to focus on a core business of developing and licensing intellectual property.

The London Stock Exchange (LSE) board unanimously rejected a $5.1 billion buyout bid by the Nasdaq (NADQ) exchange on Monday. LSE rejected the offer, saying it fails to recognise the value of the exchange. Nasdaq failed in an earlier attempt this year to take over the company.

Nordic and Baltic stock exchange operator OMX AB said Tuesday it will buy the Icelandic bourse in a deal worth about 250 million kronor.

Nasdaq International said on Sunday it was focusing on the China market as strong economic growth creates a broad range of companies that are seeking overseas listings.

Euronext's $10 billion tie-up with NYSE Group Inc. puts pressure on other exchanges to seek partnerships to catch up with what will be the world's largest financial marketplace, analysts said on Friday.

The London Stock Exchange and Euronext have held secret talks about a all-shares merger of equals to create a European super exchange valued at about 6 billion pounds ($10.5 billion), the Observer newspaper said on Sunday.