Chevron Corp. wins a round in the long legal fight over oil-field contamination in Ecuador, with a U.S. judge ruling that the company can pursue arbitration in the case. David R. Baker

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Bottom Line: More bitter pills for the state's pension funds to swallow. The California Public Employees' Retirement System pulls out of an $800 million Boston condo and hotel complex. Andrew S. Ross

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Video game publishers have worked hard to plunge players into beautifully constructed realities. But a new wave of titles is leveraging augmented reality technology to set games in the most immersive environment yet. Ryan Kim

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•  Tech Chronicles: Twitter locates you

Net Worth: Chris R. of San Francisco wants to know why the U.S. Census Bureau bothered sending him a letter telling him to expect a census form in the mail in a week or so. Kathleen Pender

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• Cash for appliances starts April 22

The owners of San Francisco's Four Seasons Hotel said Wednesday they are no longer in default on a $90 million loan after joining forces with an investment partner who will take a significant ownership interest in the property. Robert Selna

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• For S.F. tourism, no blue sky

President Barack Obama says doubling exports over the next five years will boost the economy by helping U.S. companies sell their goods and services abroad and creating new jobs at home.

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