I have the forerunner 305. I have not had the chance to explore all the software and website options. Sounds impressive though. I am on Facebook, but rarely do I go there. I do post things on dailymile.com though. Dailymile has a facebook feel to it, but is designed for people who exercise. I can keep my discussions exercise focused here. You can link dailymile to facebook, but I choose not to. Again, I like to keep discussions focused on exercise (running in particular). Unfortunately I have too many friends who post every event of their day on facebook. I do not have the patience to scroll through all of that. I also do not have the "heart" to drop some of these friends.