Forums >General Running>Social Running App
It looks like Nike has taken down their community/challenges page for the time being. But from what I remember from looking at it years ago, you could create and join communities and see one another's runs on the site. You could also create challenges (so, I could create a 3000 mile/year challenge) and invite people to join them. So, yeah, kinda like what we already do here.
My blog is JT Running DC. It's awesome. Guide to Washington DC Area Running Routes. Guide to the New York City Marathon. Guide to the Boston Marathon. Guide to Running Gear. Guide to Running Clothes.