Google increased it share of US search-ad revenue to 77.4 in the second quarter of 2008, up 2 percent from the year ago period, according to search marketing firm Efficient Frontier. From the year ago period, Yahoo dropped 2 percent to 17.8 percent and Microsoft stayed even at 4.8 percent. Google average cost per click increased 13.8 percent, Yahoo’s dropped 7.3 percent, and Microsoft’s increased 5.6 percent.
Source: CNET News