One very good way to keep track of your training progress as well as to develop a strong running support group is to join an on-line community dedicated to the same goals that you are. For runners there are several very good options, although I must warn you not to join them all. You will spend more time updating your profiles and logging your runs than actually doing the running! Because of this, you should check each of these options out, surf through the different features, see if there is anyone you know already signed up, and then pick the one that suits you best.
Here are my three favorites: