Google updates software for computer searches

SAN JOSE, Calif. (AP) — Google Inc. updated its software for searching PC hard drives and the Internet, giving the free program a new look and adding tools that deliver personalized information based on a user's Web surfing habits.

Google Desktop 2, available today as a public beta test, is the company's latest volley against Microsoft Corp. and Yahoo Inc. as all three race to expand their presence on PC desktops.

The latest Google offering includes several twists. Beyond providing search results, it monitors the user's behavior and presents relevant information in a resizable and movable vertical window called the Sidebar.

One module aggregates e-mail messages from a variety of accounts, including Google's Gmail service or the user's Internet provider. Others display stock prices, personalized news headlines, weather reports and what's popular on the Web.