I use my fitness pal, runkeeper (for GPS trackable workouts), fitbit, and jefit (for strength workouts) and GymPact as my motivation (earn money for making your pact, pay up if you sit on your butt instead).
I use MFP as well. I use MapMyRun to track my runs.
pamela I will have to check out jefit since MFP doesn't count my strength workouts!
I just use it because it shows how to do different exercises. I still go back and put in calories in MFP under cardio for it. I just round down to avoid overcounting my weight workout in calorie space.