The Internet Public Library. Created at the University of Michigan's School of Library and Information Science, the IPL carefully describes site and includes links to online newspapers and magazines . Librarians' Index to the Internet. This is a searchable annotated guide maintained by 70 California librarians. An alphabetical subject guide to the web using modified Library of Congress Subject headings.
Most links are to full text sources.
The WWW Virtual Library. The oldest catalog of the web started by Tim Berners-Lee, the creator of the World Wide Web. It's run by a confederation of volunteers who assemble links in the areas of their expertise. Although not the largest web catalog, the VL is widely considered to have the best quality guides to the subjects its covers. Resources are grouped by Dewey Decimal Class Number and are annotated.