At the Personal Democracy Forum in New York, much of the discussion Monday focused on how data could illuminate the actions of politicians and lobbyists.

The New York metro area tops the country in the number of high-tech jobs, according to a national study by the AeA, a technology trade group.

Google is expected to unveil a new ad planning tool Tuesday designed to help media buyers identify a Web site's demographic audience with more precision.

About 9.2 million Americans shopped by cellphone last year, but growth has been slowed by security concerns, according to a new report by Nielsen Mobile.

In a fight with a social news site, The Associated Press has asserted that Internet sites cannot quote the headline and first paragraph of its articles. But so far, the news organization hasn't articulated its own guidelines for its view of how Web sites can use its content.

EBay is offering better fraud protection to buyers and sellers and cutting seller fees to help restore the value it provides to customers. More fee cuts may be ahead.

HDTV makers need to incorporate more advanced features, such as Internet access built into chips, to keep growing sales of the televisions.

The more people who leave Yahoo, the less stable it becomes, leading to more questions about its leadership, less new business, delayed products and still more departures.

Most social networking sites and services are free, but AT&T is hoping its customers will pay to be social.

The chief executive of Digg, the big social news site, says he has sympathy for the claim by the Associated Press that blogs and other Web sites shouldn't quote from its articles. If users cut an paste too much on Digg, he said, they will be banned from the site.