A problem with new technologies like Second Life, is it is hard to know what they’re good for until after you become familiar with them. If you want a guide for getting stuck into Second Life check this out.
“This guide offers a basic overview of how to get started along with some tips on how to facilitate learning in this space. One of the difficulties with Second Life is that there is too much to learn by going through every menu or button systematically. It is better to pick up a few basics as outlined in this guide and experiment, rather than to get lost in the pursuit of mastering the detail of the environment.”
http://www.jisc.ac.uk/media/documents/publications/gettingstartedwithsecondlife.pdf