Scour – The Social Search Engine
http://www.Scour.com/

Scour’s purpose is to bridge the gap between searchers and relevant results. By providing a platform for the user to vote and comment on relevancy, searchers connect with one another creating a true social search community, attained through innovative solutions to meet the needs of today’s web searchers. This has been added to Social Informatics Subject Tracer™ Information Blog.