Facebook's new features raise privacy concerns

Facebook is moving quickly to make the Internet one big personalized social network, setting up the Palo Alto firm as the default communications platform for what some observers are already calling Web 3.0.

The possibilities are exciting to marketers and Web site operators - and alarming to digital privacy advocates. "Facebook wants to be the center of the social Web," said Debra Aho Williamson, senior analyst for the research firm eMarketer Inc. Whether the company succeeds, "we're going to have to wait and see," she said. "The biggest question to me is whether consumers and companies are going to want to cede the social Web to Facebook. And maybe some privacy concerns will come out that we haven't even thought about yet."