Boomshackalacka 'zine archive Foundation UK roots and dub fanzine by Russ and Lol from The Disciples. Crucial!
Jah Shaka overview by Steve Mosco of Jah Warrior
Bass Cultural Vibrations: Visionaries, Outlaws, Mystics and Chanters - Greg Whitfield on dub, punk and the avant garde
Interview with Gregory Stephens - author of "On Racial Frontiers: the New Culture of Frederick Douglass, Ralph Ellison, and Bob Marley" (Cambridge University Press)
Roots and Wires - Polyrhythmic Cyberspace and the Black Electronic by Erik Davis
Troubadours Pan De Road - at the Abashanti-I soundsystem/Falasha Recordings site.
(All of the above sites are worth checking out in more detail).
Reggae Music Store - UK roots and dub specialist.
zines and news
Reggae News - Brilliant UK online magazine with reviews, articles, interviews, news, etc. Regularly updated.
The Disciples/Boom-shacka-lacka - brilliant source of news, articles and so on.
Lee "Scratch" Perry - everything you ever wanted to know about the man but were afraid to ask. Includes Discog, Biogs, etc. Worth reading about even if you've never heard a note by him - mad anecdotes.
Zinc Fence - cool Brixton based online reggae zine.
Rasta/Patois Dictionary at the Jammin' Reggae Archives
The Dub Directory - a directory of the original tracks from which dubs have beeb created.
Reggae Riddims - the version excursion! Mostly on a ragga tip, this is a searchable guide to the many cuts recorded on each riddim.
Tapir's Reggae Discographies - a great resource of reggae labels. Essential for filling those gaps or identifying tunes.
Downbeat Special - a great Studio One fansite.
Roots Archive - extensive resource for scans of album covers
Infinitewheel Dub Selector - DIY Dub on the web - great to play with! "The ultimate hangover cure" - DJ Mach V
Jamaican Labelart - what is says, lots of great scans of great record labels.