VK (Originally named VKontakte) is a European social network service popular among Russian visitors around the world. It is especially popular in Russia, Ukraine, Kazakhstan, Moldova, Belarus, and Israel.
BuddyPress is built to bring people together. It works well to enable people with similar interests to connect and communicate. Some of the fantastic uses might be:
A campus wide social network for your university, school or college.
An internal communication tool for your company.