The primary difference is the emphasis on groups. We think of the user experience as almost 9 mini-social networks in 1. In addition to our group focus, we also

The primary difference is the emphasis on groups. We think of the user experience as almost 9 mini-social networks in 1. In addition to our group focus, we also combine groups together into organizations, something that has not yet been done, as far as I can tell. The reason I say "change everything" is the fact that the naming scheme is completely different, the design has many original aspects, in addition to the new focus of the site: groups. The tour is, admittedly, pitch speak, but feel free to sign up and check out the site if you're curious to know more!