By contrast, Orbitz.com saw the biggest decrease, as traffic to the travel site fell 25% to 10.4 million. Other big losers included Answers.com, Monster.com and SuperPages.com.
YouTube continued strong growth, increasing its audience by 77% to 64.7 million and its reach from 12.7% to 22.6% in March. Google remained the top search property with a 54.8% share of all searches.
--Mark Walsh