But as the sites attract more visitors, their founders are also striving to separate themselves from the competition, usually by building up their own methods but also, in a few cases, by trying to tear down the competition.
“My guess is that there’s not room for more than three or four of these sites,” said Nate Silver, the founder of FiveThirtyEight .com. “The trick is making sure you’re one of the three or four.”
With bonus material from Dick Bennett of American Research Group!
Dick Bennett, at the American Research Group, was even blunter. “He hasn’t been able to predict the future,” Mr. Bennett said. “If he did, he would have been able to predict who’d win in June.”