San Francisco  - One in five teenage girls say they have electronically sent, or posted online, nude or semi-nude images of themselves, according to a survey released Wednesday.

The sleazy images are widely passed around, according to the survey of 1,280 teenagers and young adults by the National Campaign to Prevent Teen and Unplanned Pregnancy and CosmoGirl. com.

A third of teenage boys and a quarter of teenage girls said they had nude or semi-nude images - originally meant to be private - shared with them.

SAN FRANCISCO, Dec. 4  -- The San Francisco Giants Thursday signed free agent shortstop Edgar Renteria to a two-year contract.

San Francisco  - Technology powerhouse Hewlett-Packard on Monday reported net quarterly income of 2.11 billion dollars, a 4.2 per cent rise on the year-ago quarter, thanks to aggressive cost- cutting and the acquisition of Electronic Data Systems.

The world's largest maker of personal computers reported a rise in revenue to 33.6 billion dollars, a 2 per cent rise, excluding currency fluctuations and the EDS acquisition.

San Francisco  - Social networking site Facebook has won an 873-million-dollar damages award against a spammer who inundated users of the site with millions of unwanted messages, the company said Monday.

In a blog posting, the company's director of security Max Kelly said the award by the US District Court in San Jose was the largest judgment in history for an action brought under the country's anti- spam legislation, known as the Controlling the Assault of Non- Solicited Pornography and Marketing Act (CAN-SPAM).

San Francisco  - For decades, tourists to the world famous scenic site of Yosemite have rested their weary heads in the rustic cabins of Curry Village in the heart of Yosemite Valley.

But the National Park Service said Friday it was closing at least one third of the cabins in the popular lodging complex because an unstable cliff has created the potential for frequent and potentially deadly rock falls.

San Francisco  - Worldwide sales of computer chips will fall by 5.6 per cent in 2009, the Semiconductor Industry Association forecast Wednesday.

It would be the first decline since the aftermath of the dot-com bust in 2001.

The trade group predicted 2009 chip sales worth 246.7 billion dollars, down from projected sales of 261.2 billion dollars this year, which would be a sales increase of 2.2 per cent from 2007.