دايركتوري هاي موضوعي

http://infomine.ucr.edu/Main.html

http://www.academicinfo.net/index.html

http://library.sau.edu/bestinfo/

http://www.ipl.org/

http://sunsite.berkeley.edu/InternetIndex/

http://scout.cs.wisc.edu/archives/

http://www.freepint.com/gary/direct.htm

http://www.digital-librarian.com/

http://home.miningco.com/

http://vlib.org/Overview.html

http://www.completeplanet.com/

http://www.invisible-web.net/