Friends

Small Presses

Bad Press (London: Marianne Morris et al) [Archival]
Barque Press (London / Brighton: Andrea Brady / Keston Sutherland)
Compline  (Oakland: Michael Cross)
Contraband (London: David Ashford)
Crater Press (London / Chile: Richard Parker)
Critical Documents (London: Justin Katko)
Damn the Caesars [The Press] (Scarborough, Maine: Rich Owens)

Distance No Object (London: Luke Roberts)
Equipage (Cambridge: Rod Mengham)
Face Press (formerly (c)_(c) Press) (Cambridge: Ian Heames)

Free Trials (Online archive of out-of-print small press pamphlets)
Grasp Press [defunct, but copies still available through Critical Documents] (Cambridge: Timothy Thornton, Luke Roberts, Josh Stanley)
Hi Zero [+ Hix Eros (online)] (Brighton: Joe Luna)

Infinite Editions (Online: Andy Spragg)

Iodine (Brighton: Verity Spott)
Mountain (Cambridge: Anon) [Archival]

Poet's Hardship Fund / Ludd Gang (Various Locations: Tom Crompton, Dom Hale, Alex Marsh) 
Sad Press (Bristol: Samantha Walton & Jo Lindsay Walton)
Shit Valley (London: Anon)
The 87 Press (London: Azad Sharma & Kashif Sharma-Patel)
Tipped Press (Cambridge / Sotterley (Norfolk) : Rosa Van Hensbergen)
The Paper Nautilus (Cambridge: Rosa Van Hensbergen / Laura Kilbride) [Archival]

Pamenar Press (London / Toronto / Tehran: Ghazal Mosadeq et al)
Unkant (London: Ben Watson / Andy Wilson) [Archival]
Veer (London: Will Rowe, Ulli Freer, Stephen Mooney, Aodán McCardle, Piers Hugill, Adrian Clarke; now Veer 2: Rob Kiely)

Zarf Editions (Glasgow: Callie Gardner)

Blogs
Abandoned Buildings (Sean Bonney) [Archival: see Gods of the Plague]
All that is solid melts into Aargh (Jo Lindsay Walton (Jow Lindsay))
A Fiery Flying Roule (Eirik Steinhoff)
Bubblegum Dustbunny Destroyer (Frances Kruk)
Damn the Caesars (the blog) (Rich Owens)
Dark Mucus (Frances Kruk)
The Disinhibitor (Michael Cross)
Intercapillary Space (Edmund Hardy)
Lisa Jeschke & Lucy Beynon [Archival]
Other People's Poems (Heames / Grundy / Jeschke) [Archival]
Prolapsarian (Jacob Bard-Rosenberg)
Sociopathetic Semiphores (Nat Raha)
Two Torn Halves (Verity Spott)

UK Reading Series

Cambridge Reading Series [archival]
Hi Zero (Brighton) [Archival]
POLYply (London) [Archival]
Xing the Line (London)
Openned [archival]

Out Else (London)
Syndicate (Edinburgh)
The 87 Press (London)
The Other Room (Manchester) [Archival]
Non-Threatening Theatre (London) [Archival]
Innovative Poetry Readings in London [Listing currently maintained by Matt Martin; previously maintained by Peter Philpott -- see archival listings]