I happen to think that people are more reilable, and less easy to fool, than algorithms (one of the exceptions is Memeorandum, which has a killer algorithm). That's why I'm interested in social search efforts like Wink and an intriguing Firefox extension callled Outfoxed. Essentially, it's a cross between social networking and search. From the Social Software Weblog:
Outfoxed is the implementation of Stan James’s master’s thesis on Trusted Metadata Distribution Using Social Networks. The idea is to get beyond the model of objectively weighting links by number, moving towards showing you subjective, trusted ratings of pages from your cohorts and contacts in your search results. As you surf, you can make explicit assessments of the sites and services you’re visiting. These trust assessments get published as RSS 1.0 files with some extra tags that are parsed by Outfoxed. Your contacts are privy to your assessments, which then show up in your search results (”rated good,” “rated dangerous,” etc.).