Stack Exchange – Expert Knowledge Exchange
http://stackexchange.com/

Stack Exchange is a fast-growing network of 76 question and answer sites on diverse topics from software programming to cooking to photography and gaming. They are an expert knowledge exchange: a place where physics researchers can ask each other about quantum entanglement, computer programmers can ask about JavaScript date formats, and photographers can share knowledge about taking great pictures in the snow. This has been added to Internet Experts Subject Tracer™ Information Blog. This has been added to Knowledge Discovery Subject Tracer™ Information Blog. This will be added to Tutorial Resources Subject Tracer™. This has been added to the tools section of Research Resources Subject Tracer™ Information Blog.