TrainingPeaks/SportTracks/VeloViewer/Golden Cheetah

BPCycler

There are several cycling analytics & monitoring sites and tools available. I'm currently testing TrainingPeaks, SportTracks, VeloViewer and Golden Cheetah to determine which would be the best for me.

Do you use one of these services or have you used any of these in the past? Which, if any, do you use or prefer?

glevinso

I currently use Training Peaks and I find it to be an incredibly valuable tool. I haven't used any of the other ones. My TP account is a premium account that my coach uses to provide me with all my training, and he gets all my feedback through there.

NorthCascades

The real differences in those tools come down to how they interpret power data. If you don't use a power meter, the only value I think you'll find are the coaching and training services but again those benefit strongly from power data.