I'm trying to plan out my schedule for the next few months. Some of you may find this a useful reference. It'd be really neat if someone were to enter all this info into a public Google Calender or something (like ConThingy, but that looks a little bit broken at the moment).
CFP Final Deadlines: Black-Hat Vegas : May 15 Recon : May 15 BruCON : May 15 DefCon : May 27 ToorCon Seattle : Jun 1 hack.lu : Jun 1 OWASP AppSec USA : Jun 14 TakedownCon Vegas : Jun 30 HashDays : Jul 3 HITB SecConf Malaysia : Jul 15 Source Barcelona : Jul 15 SecTor : Aug 15 Black Hat Abu Dhabi : Sep 15 Ever Conference I Can Find: May 12-13 : Internet Security Operations & Intelligence 9 [Dulles,VA,USA] May 17-20 : HITB Security Conference [Amsterdam,NH,NLD] May 18-19 : Takedown Con [Dallas,TX,USA] May 27-29 : ph-neutral 0x7db [Berlin,BE,DEU] May 28-29 : LayerOne [Anaheim,CA,USA] Jun 7-10 : OWASP AppSec [Dublin,L,IRL] Jun 10-12 : Summercon [Brooklyn,NY,USA] Jun 15-16 : Source-Seattle [Seattle,WA,USA] Jun 17-19 : ToorCon-Seattle [Seattle,WA,USA] Jul 8-10 : RECON [Montreal,QC,CAN] Aug 2- 4 : Black Hat Briefings [Las Vegas,NV,USA] Aug 4- 7 : DEFCON 19 [Las Vegas,NV,USA] Aug 10-14 : CCC Camp [Finowfurt,BB,DEU] Sep 8- 9 : Sec-T [Stockholm,AB,SWE] Sep 19-21 : BruCON [Etterbeek,BRU,BEL] Sep 19-21 : hack.lu [Luxembourg District,LUX] Sep 22-23 : OWASP AppSec [Minneapolis,MN,USA] Oct 10-13 : HITB Security Conference [Kuala Lumpur,KL,MYS] Oct 18-19 : SecTor [Toronto,ON,CAN] Oct 26-29 : HashDays [Lucerne,LU,CHE] Nov 14-18 : Source-Barcelona [Barcelona,B,ESP] Dec 6- 7 : TakedownCon Vegas [Las Vegas,NV,USA] Dec 12-15 : Black Hat Abu Dhabi [Abu Dhabi,ARE] Dec 27-30 : 28C3 [Berlin,BE,DEU] Not listed: BayThreat, San Diego ToorCon, various BSides.