Fortune senior editor David Kirkpatrick says:
Yet Second Life may be more important, longterm, than even this much publicity would suggest. That’s because what it really may represent is an alternative vision for how to interact with information and communicate over the Internet.
Yes it’s cartoony, but one of the great things about Second Life is that whenever you are doing anything, you can see the other people who are nearby as well. This brings a dimension of social life – so elemental to how we live our lives offline – to the Internet in a way that up to now the Web has not. In Second Life everything you do is done in a social space, though you can get privacy if you want.
The whole article is worthwhile.