Yahoo Inc. plans to make its web site a social hub by hosting applications from other online services, part of the Internet pioneer's effort to spawn more advertising opportunities, reports the Associated Press. "We are going to rewire the entire experience at Yahoo to make it social in every dimension," Ari Balogh, Yahoo's chief technology officer, said Thursday at a Web 2.0 conference that drew a crowd of more than 1,000. The more open platform copies a concept that already has been embraced by internet search leader Google Inc. and a variety of online social hangouts, including Facebook Inc. and