Intellogist – Resource Finder
http://www.intellogist.com/wiki/Resource:Resource_Finder

This tool displays search systems, databases, publications, and websites grouped by technology area. Selecting a technology area of interest will expand the sub-topics within that discipline. Resource Finder is a dynamic tool which can be improved with input from the search community. This has been added to the tools section of Research Resources Subject Tracer™ Information Blog.