DailyBurn.com

Fitness videos and nutritional guides. Their claimed success comes from the variety of exercises offered.
MapMyRun.com

Here you can map your route / track your activity / log your food / share with friends

DailyMile.com

Their claim “social experience for active people”: here people can share their training experiences
PeerTrainer.com

Community based social fitness network with a large user base and many information on diet and health
Traineo.com

Their claim “combining the latest software technology with sound information and services from the world’s leading health and fitness experts”
FitLink.com

Another all-in-one fitness community: log your workouts / research exercises / calculate your BMI…
FavoriteRun.com

Some features: Map new running routes from cities all across the world and log your personal activities
WalkJogRun.net

Let you find and create routes near you
Source: Fit hacks