Forum Moderators: phranque
1. If you have redirection enabled at your registrar, you could set up a one-page website for each domain with just a counter on it. There are free hitcounters out there, just do a search on Google and you'll find them. Just redirect the domain to the page and watch the hits come in.
2. Another way is to redirect it to a linkportal (like Roar, or DomainSponsor). They keep track of the traffic, just not of where the traffic comes from tough... oh, this way you earn a few cents per click as well :)
Hope this helps,
spietreser