• Dirty  - Very stylish Underworld-affiliated site with up to date information, discussion forums and frequent webcasts.
• Big Screen Satellite - Comprehensive discography, band history, tours and news.
• Lazlo's Discography Machine - Comprehensive discography for Underworld from their Freur era onwards.
• MTV: Underworld - Videos and reviews.
• RollingStone.com: Underworld - Includes biography, discography, pictures, articles, video files, and message board.
• RTSR : Underworld Confusion Centre - Longest running Underworld related website. Primarily a trading resource for rare material. Also consists of mailing list, webring and radio show.
• underworld: tales: - Links to biographies, reviews and interviews.
• Underworld vs Musichall - Band history, pictures, and links.

• BBC - Dance Review - Underworld: A Hundred Days Off - Review of Underworld's latest Album - A Hundred Days Off.
• iJamming: The Underworld Interview - In depth interview with Karl Hyde of Underworld by Tony Fletcher, subsequent to the release of A Hundred Days Off.
• Metacritic: Underworld: Everything, Everything - Multiple critic and user reviews for the DVD.
• Pitchfork Review: Underworld - Beaucoup Fish - Album review by Brent DiCrescenzo.
• That Thing I Never Wrote About X-Press 2 - A personal review of Underworld live.

Downloads

• Underworldlive - Source of non-album output from Underworld's Karl Hyde and Rick Smith. Archived interactive photographs, videos, and MP3s of live gigs.
• VH1: Underworld - Videos, audio clips, news, links, and biography.

Fan Pages

• Eikman's Underworld - Underworld fan site featuring news, lyrics, discography and biography.
• Jet's Underworld Page - A fan site with discography, lyrics, pictures, and links.
• Superfreak's Underworld Page - A fan page with interviews, lyrics, and discography.

Image Galleries

• Bright Lights Shine - Collection of Underworld pictures ranging from Freur in the 1980s onwards. Site also includes fan submitted artwork, music and links.
• rowla - Underworld fan art projects.
• Tomato - Online portfolio for the art and design collective co-founded by Rick Smith and Karl Hyde of Underworld. Produce television commercials, documentaries, film titles, music and sound design, publications, typography and brand identities.

Lyrics

• Deep Blue Morocco - Searchable Underworld lyrics site. Categorized by album.
• loophole howareyou - Underworld song lyrics categorised by album.

Shopping

• Underworld, Merchandise - Official garments and other items for purchase online.