By far, most of the traffic from links comes from the sprawling hybrid of Google search and news, which provides about 30 percent of the visits to news sites, according to a report released last week by the Project for Excellence in Journalism, part of the Pew Research Center. And the second? Has to be Facebook, right? Nope. Then Twitter must be the next in line. Except it isn’t.Give up? It’s The Drudge Report, a 14-year-old site — a relic by Web standards — conceived and operated by Matt Drudge. Using data from the Nielsen Company to examine the top 21 news sites on the Web, the report suggests that Mr. Drudge, once thought of as a hothouse flower of the Lewinsky scandal, is now more powerful in driving news than the half-billion folks on Facebook. According to the study, Facebook accounted for 3.3 percent of the referrals to news sites, less than half as many as generated by The Drudge Report.