So instead of logging in to a virtual world and flying your avatar to a virtual showroom of your favourite car manufacturer where he could inform himself about the newest car models, he could now just go to the manufacturer’s website… I mean, you could go to the website and your avatar would be there, too, like the avatars of other people just visiting this website at the same time. Presumably, you could then do whatever it is that avatars do. Or think about IBM: Instead of meeting somewhere in Second Life, IBM’s teams could meet right on the company’s website, eliminating the need to invest a lot of money in a new virtual presence.* The WWW’s virtual enough already!
*If I just saved your company a lot of money, feel free to send me huge cheque. 😉