we have noticed the preferential attachment law in application while we search on google. It is more likely that we click the hub.
I have found this other search engine (it's a beta version and it does not search too well) called eurekster. This search engine would make the links that your friends linked to already on top. In a sense it's an anti-preferential attachment. In another sense, it is creating its own preference. Instead of following the real hub, this search engine enables you to create your own hub in your own personal network.
