I will take a look at ProLogCycling.com, but it says it is for the"serious" cyclist. Hey, I'll be honest, while I'm serious about cycling, I am just a recreational cyclist. I don't ride in any races, I ride my bike to ride my bike.
I'm currently using BikeJournal.com. I like it very much and it does everything I need it to do. It is free and I can access it from any PC on the Internet. You can track the mileage on your bike(s), your tires, your chain and so forth.
http://www.bikejournal.com/
But I will take a look at ProLogCycling.com.
Ride On!
-Spoke