Probable GOP presidential nominee Sen. John McCain won't have to give any more speeches about the kind of conservative judges he'd appoint if he looks to Yahoo search engine users for advice on whom to pick for his running mate. That's because conservative Supreme Court Justice Antonin Scalia ranks second in searches to Secretary of State Condoleezza Rice on the GOP side. Either would be unusually historic picks, and certainly much more unconventional than the two other leading search choices: former candidates Mitt Romney and Mike Huckabee. There are no surprises among the top Democratic searches for vice presidents. No. 1 is Sen. Barack Obama followed by Sen. Hillary Clinton. Do the results of the Yahoo "Search Buzz" meter mean anything? Yes: It's been a good predictor for election results this year, especially voter support for candidates.