Battle.net is Blizzard's online match-making component for several of their game franchises. The network features both PvP and co-op play.
Description
Battle.net is supported for Diablo, StarCraft, Diablo II, WarCraft II: Battle.net Edition and WarCraft III, including expansions. It is announced to also support StarCraft II and Diablo III when those games are released. The network will get a complete overhaul with the release of StarCraft II, and games media are anticipating a great range of features.
Details
Diii.net have an article series about Battle.net and Battle.net 2.0 in their articles section that handles all known features of Battle.net 2.0: