Trevor, the author of Adlogger suggests using ClickAider - but i don't know if it prevents repeated clicks.
I think there is a script to block clicks from that comes from the same IP more than once.. But i personally never used them...so not sure.
Hi, Generally there are 2 types of scripts to asssit in click fraud or bad clicks in adsense: 1.Control Type: control excessive repeated clicks from one IP address, such as adlogger ( which u do not like ) 2. Monitoring type : eg revenuemonitor ( previously adsenselogger ), adspytracker As for free scripts that fits the "control" type, perhaps someone can post some good ones that can be purchased relatively cheaply? Thanks