Yahoo gains search advertising market share, Google keeps lead

read at the Atlanta Business Chronicle:
"Google Inc. maintained its hold on the search advertising market during the fourth quarter with 76 percent market share while Yahoo Inc. gained 3 percent share year-over-year, according to a report Tuesday.

Sunnyvale, Calif.-based Efficient Frontier, which provides search engine marketing technology and services, released its quarterly report based an analysis of 92 billion impressions and 600 million clicks across a portion of its customers.

'Despite the economic downturn and reports of the erosion of other marketing channels in 2008, the index of Efficient Frontier customers included in the Q4 report saw a minimal 8 percent decrease year-over-year, while the retail sector saw a 9 percent uptick in spending year-over-year, an indication of the strength of the search marketing channel,' the company said."