2007 YTD Search Engine Performance Report Card
As 2007 is now half over, it seems a good time to compare the performance of the Big Three search engines year-to-date. The punch line: Google reigns dominant, providing the lion’s share of clicks, and Google clicks convert well. Microsoft offers strongly converting clicks at a lower-than-expected cost—good efficiency, but sadly almost no volume. Yahoo commands 22% of ad spend, but lags in click quality.