What really works for me is using Endomondo.com to track my workouts and using C25K to do my jogging all on my Android phone. I really want to exercise because I need to if I don't want to become ridden with health problems, but motivation is what really made it impossible for me in the past. Now by using both tools on my cellphone I have the motivation to go out and do some exercise because it appeals the geek in me. I want to better myself so that I can look at the graph of my performance and say "wow! I'm getting better!". If I jog 30 minutes each time I jog, I will at least try to beat the distance I have set last time since Endomondo is tracking all the data from my runs. Also, there are a lot of user-made challenges on Endomondo, and it further motivates me (for example : Travel 150km in August, running or cycling).
I think a lot of people have the same problem I had : They know they NEED to work out, they don't really know how or even if they do, they don't have to motivation to go out and do it. The problem is that you don't see instant results when you work out, it takes weeks and months to see the results, but by using all sorts of tracking tools, it motivates you to keep getting better because you will be able to see exactly your progress as you make it.
I think a lot of people have the same problem I had : They know they NEED to work out, they don't really know how or even if they do, they don't have to motivation to go out and do it. The problem is that you don't see instant results when you work out, it takes weeks and months to see the results, but by using all sorts of tracking tools, it motivates you to keep getting better because you will be able to see exactly your progress as you make it.