ChickenTuna - Probably the most fit and blunt person I've come across online. Whether you're a man or woman, it's hard after reading her thoughts not to look at exercise and eating differently. Her Tumblr page is also very motivating and entertaining!
DailyBurn Tracker - This is the free web and iPhone app recommended by Tim Ferris in his intense book, "The 4-Hour Body: An Uncommon Guide to Rapid Fat-Loss, Incredible Sex, and Becoming Superhuman". The habit of monitoring your nutrition will always put you on the right track to reaching your goals.
LingQ - The only monthly paid site I use to learn French and keep my learning active. LingQ was founded by Steve Kaufmann and is by far the best language learning tool I've sought out and found.
The genius is the tracking of known words and audio with transcripts you can follow along. Barry Farber in his book, "How To Learn Any Language", described a similar manual way he used with highlighting newspaper clippings in the target language and adding the words to lists. LingQ does all this automatically.