Peer-to-Peer Knowledge.
What an interesting idea. “Works just like Peer-to-Peer music services, but we don’t share music; we help people share knowledge, connect to each other and find things and information. P2PQ is a dynamic directory of live people, available to you from anywhere and any device. “
In technical terms, it’s a client server system for farming out questions to people via a modified instant messaging system, returning the aggregated answers to a single webpage or device. No Mac client available yet, though. :-(