The Democratic National Committee launched a new Web site Monday promising to be an online clearinghouse for opposition research on John McCain. "McCainPedia" compiles DNC research on the presumptive Republican nominee under topics like "Economy," "Ethics" and "Security" and targets McCain's "empty rhetoric" on Iraq as well as his role in the Keating Five scandal of the early 1990s. Users are also invited to access DNC video from both YouTube and FlipperTV, the Democratic Party’s archive of campaign tracking video.In launching the site, the DNC claims that anyone can research and share the material. Unlike Wikipedia, on which the site...