So the nagme system would allow you to enter websites, search terms, time amounts, times of day, etc. which trigger the system to hit you with a pop-up or warning asking “are you SURE you want to be doing this?”, giving you a chance to stop short of a behavior you’re trying to change.

Whether it’s surfing to those meaningless websites, searching for random wastes of time, or spending 5 hours sorting through your junk mail folder – however you waste time, you can have the system remind you periodically that you asked yourself not to do that anymore.

Sort of anti-del.icio.us