From the Web 2.0 Conference:
Most of us waste a lot of time trying to find times for meetings. Inside a company, Microsoft Outlook users (on Exchange servers) can see the times their coworkers are free and busy. It's a good start, but when we want to schedule a meeting with multiple people or meet with people outside our company, everything can quickly fall apart. TimeBridge is trying to solve this problem, with a system that handles the negotiation of finding meeting times.