BuddyPress will transform an installation of WordPress MU into a social network platform.
BuddyPress is a suite of WordPress plugins and themes, each adding a distinct new feature. BuddyPress contains all the features you'd expect from WordPress but aims to let members socially interact.
"The cross-platform open-source multimedia framework, player and server
VLC media player is a highly portable multimedia player and multimedia framework capable of reading most audio and video formats (MPEG-2, MPEG-4, H.264, DivX, MPEG-1, mp3, ogg, aac ...) as well as DVDs, Audio CDs VCDs, and various streaming protocols. See the full features list.
It can also be used as a media converter or a server to stream in unicast or multicast in IPv4 or IPv6 on networks."