Erick Schonfeld at TechCrunch published an estimate on the current slowdown in advertising revenue generated by Google, Yahoo, Microsoft, and AOL. The sequential growth rate was 12.7 percent in the fourth quarter of 2007, down to 2.8 percent in the first quarter of 2008, 1.1 percent in the second quarter and down to an estimated [...]

Google announced it will be ending it’s advertising agreement with Yahoo today. Yahoo was exploring “the option of using Google to provide ads on its websites (and its publisher partners’ sites) in the U.S. and Canada.”

What this will mean for Yahoo in the long run is hard to tell at this point. We might see [...]