If I'm working on my blog site and need to refresh it to see my changes it counts as an impression and messes up my CTR. Any tricks on avoiding this?
you could use PHP to block your own IP from displaying your ads - there's a post in the adsense section from just the other day on how to do this.. but I wouldn't even bother..
This link has some good stuff on this issue: http://forums.digitalpoint.com/showthread.php?t=61290&page=2&highlight=block+adsense