This summer I was invited to join a bike challenge and we were tracking our miles and workouts on this site
http://www.endomondo.com/It's pretty cool in its basic concept, although a little too smart-phone centric for my liking. It allows you to track yours and your peers progress, helping to motivate you go to out there and do more.
Before this thing, I rarely rode my bike to work (36 mile round trip), but this year between August and October, I did more than 1000 miles using this challenge model. Now I bought some fenders for my bike to keep going until the wind chill gets down to the insane level around here.
Since Aug 1, i got these vital stats just for my work commutes
Total workouts: 55
Total duration: 3d:00h:02m
Total distance: 1689 km
Trips around the world: 0.042
Trips to the Moon: 0.004
Calories burned: 42902 kcal
Burgers burned: 79
I also saved about $300 in gas.
Might be worth setting up some sort of challenge or group for the Whitney prep, so folks aren't alone in their training efforts. Or you could join an existing challenge that matches your preferred workout type.