IntroducingCommunity in Second Life. Connect with Friends and Meet New PeopleIn Second Life, there's always someone to talk to, dance with, learn from or perhaps even love. You can meet people all over the world without ever leaving your home. And here, there's no jet lag and the clubs are always open.
OpenSimulator is an open source multi-platform, multi-user 3D application server. It can be used to create a virtual environment (or world) which can be accessed through a variety of clients, on multiple protocols. OpenSimulator allows virtual world developers to customize their worlds using the technologies they feel work best - we've designed the framework to be easily extensible. OpenSimulator is written in C#, running both on Windows over the .NET framework and on *ix machines over the Mono framework. The source code is released under a BSD License, a commercially friendly license to embed OpenSimulator in products.