Second Life enables its virtual residents to engage in various activities, such creating and building static or animated objects, interacting with people, or buying and selling objects and land. Each member can design its own avatar and determine how the member's model in the virtual world looks like.
The project was initiated in 2003 and its population has grown explosively over the past years. From 100,000 residents at the beginning 2006, the number has now reached several million. The program has its own virtual currency to conduct business. Interestingly, this currency can be exchanged with real US dollars.
Real world business opportunities provided by this virtual world have attracted real world companies such as Sun Microsystems which has used this venue to promote its new gaming solutions, and Reuters has set up shop to deliver news reports to and from Second Life.
The Linux client of Second Life features the same functions as the Windows and Mac OS X versions and can be downloaded here.