Social networks used for recommendation of products and services are not new, but it is always nice to see how some people set up a network like that with a different approach. Trusted Opinion is one of them. So how is it different from others ?

Trusted Opinion lets opinions of people wheigh heavier the closer they are to you.

Your friends' opinions carry the most weight. The opinions of their friends (your friends-of-friends) carry less. Your friends-of-friends-of-friends still less, and so on.(Webware)

Sounds like a good idea to me. Who do you go to when you need advice ? Your friends.