Google- The Boss!

Google Inc. topped global search charts in August, but search engines in China and South Korea are challenging the search company in their own countries, according to Internet research firm comScore Inc.

Google captured roughly 60 percent of the searches conducted worldwide in August, blowing away the field with 37.1 billion of 61 billion queries, comScore said. Five billion of Google's August searches came from the Mountain View, Calif., company's video property YouTube.com.

Yahoo was the second most used engine, followed by Baidu, the Chinese language search engine, the report said.

"Seeing Asian search engines like China's Baidu.com and Korea's NHN ranked alongside Google and Yahoo underscores the fact that search has become a truly global phenomenon," said Bob Ivins, executive vice president of international markets at comScore, in a statement.