Slimelight - 2 floors every Saturday opens at 10pm closes at 7:30am, they play the whole range of dark music from goth to industrial to darkwave to etherael, door is 5-8 pounds. Located at 7 Torrens Street, London, UK, +44(0)20-7837-6419.
Electric Dreams - A London nightclub for eighties new wave and synthpop. See the web site for type of music played, location, djs, upcoming events, etc.
HELIX - UK Goth/Industrial Launchpad, Gig/Event listings (updated weekly) and Nightclub/Other Regular Event listings (updated monthly).
Whitby Gothic Weekend - a twice a year goth-fest in England (usually in April and November). This sounds great, I would definatly love to check it out myself if I ever get to the UK, some people who have been have given it good reviews.
Kagan - Most of it's in Dutch so I don't know what it says, but from what I can make out it's a goth, industrial, electro, darkwave events page with parties and show dates.
Pendul - Timisoara Romanian underground culture. Music, people, news.