Dave: Here's an idea. Should Google take who's doing the search into account when doing its page rank work?
An interesting idea. Of course, it would mean letting google know what kind of searches I'm doing; also if google already tracks users with cookies, it does this more or less anonymously while such a service would require registration. However, provided that they would give a better service, this is not my concern.
Ideally Google could develop an additional layer of ranking based on users. It could track my searches and learn from the results that I tend to pick. It could always provide on top, maybe in a separate box, not only the content written on my own weblog, but also the contents written by people in my neighborhood, which most probably I trust better than others (I'm looking at my related sites pages right now, and I not only trust but I know most of these people).
Given their huge parallel processing power, I'm sure that this kind of tracking could provide all kind of added value to their data and improve their service.
It would also mean acknowledging that the web is used not only by readers but also by an increasing number of writers and given their recent acquisitions, they should know that.
PS: small pictures of people's faces are great, we should find additional ways to use them.