Here's a List of some great underground sites..

AltaVista You know us as the Internet's original search engine.
Lycos One of the most visited hubs on the Internet reaching one out of every two web users.
Yahoo! With over half a million sites divided into more than 25,000 categories, Yahoo! is both browseable and searchable.
InfoSeek GO Network is a new brand that brings together the very best of the Internet in one, easy to use place.

Favorite Sites

www.Siccness.net Now The Largest Site For Underground Rap On The Web!
www.Raptalk.net The O.G. In Rap Chat & Undergorund Promotion!
www.bayridaz.com Another Classic Rap chat site..