Directories to List Your Website In

NOTE: This list is rather outdated. Sorry about that.

Yahoo! (Free / Charge - $299 annually)
Non-commercial sites may be submitted for consideration for free. Commercial sites require an annual payment.
docs.yahoo.com/info/suggest

DMOZ (Free)
A huge directory which is used by many other websites. Managed by a system of volunteer editors. Can take a long time to get your site considered.
dmoz.org/add.html

Gimpsy (Free / Charge - $30.00 one time)
Interesting directory with a slightly different layout. Free listings have a long waiting period.
www.gimpsy.com/gimpsy/searcher/suggest.php

JoeAnt (Charge - $39.99 one time)
Directory run by volunteer editors.
www.joeant.com/suggest.html

GoGuides (Charge - $39.99 one time)
Directory run by volunteer editors.
www.goguides.org/info/addurl.htm

Web-Promotion.Net (Free / Charge - $3.00 or $19.00)
Directory indexing both content type and site location. Free and $3.00 options require a return link from your home page.
www.web-promotion.net

Other Lists of Directories:
www.tipsntutorials.com/Top-Directories