‣ Get third party referrals from Google, Facebook, Twitter and more... Google is still the best source for referrals. 40.1 % Google, 16.8 % Yahoo, 13.1 % Bing, 7.9 % Facebook, 2.7 % AOL and 0.9 % Twitter ‣ Look to Facebook for future growth, growing faster than from search engines. Facebook will surpass Yahoo! within the year to be second in referral tra c Note, American survey by TubeMogul & Brightcove