Akkam’s Razor

So let's say one takes the model I power my blog with, pulling in data from delicious, digg, bloglines, flickr, etc., making "my database".  If many people did that, and you had a service that allowed you to take people you know (using your email addressbooks), cross-checking them with a variety of social services, and then allowing you to build a custom database of "your stuff" and "your friends stuff" or your people with the same interests or locality.  It's reasonable that you may get more meaningful results, although you would lose out on valuable contrarian sources and eclectic sites.

In envisioning a community-driven site, users could voluntarily add their blogs, photoblogs sites, music sites, forums, etc., and create a custom search engine (and index).  How relevant would those results be?  Would they be valuable to the end-user?   So, for example, I've used the Google Co-Op to create a custom search engine which aggregates my blog, my Flickr account, my "dugg" items on Digg, the PhillyFuture aggregator, and my del.icio.us account.  You can play with it here.