Social networking comes to the 2008 presidential campaign with MySpace's introduction of a new section called "Impact: Presidential Focus." Candidates who are participating in this Internet information hub include Democrats Joe Biden, Hillary Rodham Clinton, John Edwards, Dennis Kucinich and Barack Obama, along with Republicans Rudolph Giuliani, Duncan Hunter, John McCain, Ron Paul and Mitt Romney. Candidate MySpace pages include blogs, photos, videos and, of course, the all-important friends list. (At this point, Barack Obama has the most friends by far, closing in on 70,000.) Candidate ads are also available for MySpacers to plaster on their own pages. Read more.