Nasdva Directory

Findelio

http://www.findelio.com/

Web directory organized by category and topic.

General Web Directory

http://www.generalwebdirectory.com/

A human edited website inclusion service aimed at offering spam free internet websites from a wide range of categories.

Web World

http://www.webworldindex.com/

Offers a searchable database of free and paid listings, organized by topic. Also features webmaster resources, computer services and article submissions.