Also

* James Murdoch, Rupert Murdoch’s youngest son, resigned from News Corp.’s board the day after being appointed chief executive of the firm’s satellite-television service British Sky Broadcasting.

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* Network Appliance Inc. of Sunnyvale, Calif., agreed to buy closely held Spinnaker Networks Inc. of Pittsburgh for about $300 million in stock to expand its line of information-management programs.

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* Lockheed Martin Corp. was forced to take full ownership of the Astrolink satellite venture after Liberty Media Corp. terminated an agreement to buy it. The $3.7-billion project, created in 1999 to provide satellite-based Internet and telecommunications services, collapsed after demand wasn’t as strong as anticipated.

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* General Motors Corp. said it planned to boost its manufacturing capacity in China by 50% to build Cadillacs, expanding its push into the luxury end of the world’s fastest-growing auto market.