These are a list of the websites I use to track experiments, measurements, and generally keep myself motivated. Feel free to add me to any your own if you belong to any of those sites. If I start using any more I will be sure to add them.
Fitocracy: A great site to motivate yourself to work out via gamification. (My Fitocracy account)
Myfitnesspal: In my opinion the BEST site to track food. (My Myfitnesspal account)
Runkeeper: I like this website because it plays nicely with my Garmin forerunner, and it syncs right to fitocracy. (My runkeeper account)
Grateful160: Great way to maintain a gratitude journal.
Pinterest: (all the cool people have one!) this is My account!.
Tumblr: Love all the support and posts from the tumblr community, this is my account.