This is a list in progress, so yet to be completed but do send comments and additions. Being on this list is not a recommendation just to inform of existance.
Britian based anti-capitalist (mostly anarcho :( ) news and forums
Autonomedia slash
Protest Net event listings
http://anti-politics.net/forum/ ( linked: http://www.geocities.com/kk_abacus/ )
Nadir (German)
Joomla (and it's predecessor Mambo) and grab add ons
my own page to help people doing mambo templates
try them out at: opensourcecms
article on community building web sites
Web Database Applications with PHP and MySQL by Hugh E. Williams, David Lane (O'Reilly ISBN: 0596000413)
Organisations:
see their CMS solution list
This section may get page of it's own soon.
These are collectives that have offered web and/or email hosting to radical projects where you get your own login.
(Etext political requests now handled by mutual aid, lists, domains/DNS and webspace)
Rise Up (who host email lists, domains and webspace )
NPOGroups Alternative to Yahoo
Some hosting is word of mouth / referal hosting and do not offer a general hosting service to anyone who asks, but do try.
I manage a VM server myself so I too can offer web hosting under domain of choice but no MySQL db, PHP etc. But little support as I am busy with my own projects and still getting to grips with it myself.
commie list ( a bit too heavy)
aut opsy ( where Harry M. Cleaver, Jr. hangs out )
Situationist email list.
Well I ended up getting involved with Indymedia Scotland and IMCUK.
feedback, corrections and additions wellcome to: sb [at] j12.org
If you were looking for pages concerning other subjects on the j12 website then email us ( web 'at' j12.org ) for help locating them.