WWW Virtual Library
The oldest online catalog of the Internet and widely recognised as being amongst the highest-quality guides to particular sections of the World Wide Web.
www.vlib.org/
WWW Virtual Library: Alphabetical
World Wide Web Virtual Library resources in alphabetical order.
vlib.org/AlphaVLWWW Virtual Library: Database
Home of the WWW Virtual Library Database.
conbio.net/VL/database/