londrum - 6:47 pm on Feb 25, 2010 (gmt 0)
im not saying it has changed his bounce rate. that has always been what it is. im saying his new rich snippets has encouraged more people to click on his search result. so google is getting more data about his site... so if his bounce rate was lousy, it's as if he's brought it to google's attention -- dropping him down the serps.