The IDC is reporting that Google has taken the lead in display advertising away from Yahoo. During Q1 2011, Google Display Network s revenue share surged to 14.7 percent, greater than Yahoo by 2.4 percent.

The research also said that display comprised 33 percent of digital ad spend, up from 29 percent two years ago, while search declined, making up 48.7 percent of the market share, down from 53.4 percent two years ago. Google’s display business mostly adopted clients from its search advertising business.

Source: AdWeek