The lounge function of TARGET requires users to install a Viewer. This follows the practice of commercial systems such as Second Life.
That practice seems about to change in Second Life, which is now available online without the need to have a Viewer. An ordinary web browser is sufficient.

Information on the new version is at http://bit.ly/9qVMpm

http://twitter.com/secondlife has updates about the web version of Second Life. Looking at it , thousands of people are now trying the beta...

You can try it out at http://interest.secondlife.com/beta