Here is another one... Join their group! http://www.facebook.com/groups/onegoodreason brooklyn parties...

Here's one that's coming up this Halloween! "At the end of the road is a gate protecting an expansive land of sound and color from everyday grime and grit. Inside lies a door leading to a concrete forest of glowing marvels. For a special moment in time, separate yourself from the rest of the world, and walk directly into the light. RJD2 FreQ Nasty Random Rab David Starfire Govinda Srikalogy Dynasty Electric" http://www.facebook.com/events/312028458904311/ these guys are the ones putting it one... http://www.unicornmeatnyc.com/

check this place called "the lab (electric warehouse)" also this website has info about the "secret" brooklyn party spaces. been to some great parties out there! http://brooklyn-spaces.com/2011/08/the-lab-electric-warehouse/

i heard Danger is doing their final event this month. sad! here is another one I recently heard of though: http://bangon-nyc.com/

place in Williamsburg called the ""House of Yes."" music, artists, acrobats, hipsters, etc....

every weekend over there. byob though!
 "

if your into the electronic rave type scene, join this group. http://www.facebook.com/blkmarket?ref=ts
They're called the Black Market.  Always have something going on! They go all night.
 "

try this as well, it has good parties for almost every city in the world.... "

Go directly to a website called www.thedanger.com. A great group for frequent secret warehouse parties in brooklyn.