Personally, I'd rather have some sense of the underlying logic of search tools, and develop instincts about what "works best," based on my own (somewhat random) interests.

It does not require any special plugs, Java Applets or DLL to be installed on the server. Utility is completely web-based, so the end users don't need to download any plug-in application to chat directly with staff.

Sites like Expedia , Travelocity and Orbitz transformed that forever (and sites like Kayak are creating even more efficiency). Sites like Change.org and Ning allow people to create their own social networks and provide many tools for efficient communication and collaboration. In addition, Change.org was created specifically for non-profits to develop their social networks.