Updated> Directory Resources On the Internet
http://www.DirectoryResources.info/

The above is a white paper link compilation of the Directory Resources On the Internet Subject Tracer™ Information Blog by Internet Expert Marcus P. Zillman, M.S., A.M.H.A. This Directory of Directories covers all the competent and well maintained directories available from the Internet and makes for an excellent alternative search resource! It is a 41 page .pdf document 283KB. [Updated February 2, 2013] Other white papers are available by clicking here.