The definitive resource for hacker and hackathon groups on Facebook and beyond.
HH Job Listings (http://hh.gd/jobs)
Giveaways should be posted in HH Free Stuff (http://hh.gd/freestuff).
Data Hackers: https://www.facebook.com/groups/541448455986568/
Freelance Hackers: https://www.facebook.com/groups/791749250889370/
Hack - Music: https://www.facebook.com/groups/1562067487360179/
Hacker Homework: https://www.facebook.com/groups/HHhomework/
Hackers - Book Club: https://www.facebook.com/groups/1283193408435026/
HH Welcome: https://www.facebook.com/groups/hhwelcome/
HH Blog Posts: http://hh.gd/blogposts
HH Code Reviews: http://hh.gd/codereview
HH Coding: http://hh.gd/coding
HH Connect: http://hh.gd/connect
HH Constructive Debates: http://hh.gd/debate
HH Design: http://hh.gd/design
HH Free Stuff: http://hh.gd/freestuff
HH Hardware: http://hh.gd/hardware
HH Hebrews: https://www.facebook.com/groups/hhhebrews/
HH Housing: http://hh.gd/housing
HH Interview Prep: http://hh.gd/interviewprep
HH Meta: http://hh.gd/meta
HH Product Launch: http://hh.gd/launch
P2P: https://www.facebook.com/groups/474047392772398
HH Skillshare: http://hh.gd/skillshare
HH Share Your Projects: http://hh.gd/shareyourproject
HH Throw a Hackathon: http://hh.gd/throwahack
HH Virtual Reality: http://hh.gd/vr
HH Websites & Resumes: http://hh.gd/resumes
HH What Are You Working On?: http://hh.gd/waywo
Cali Hackers: https://www.facebook.com/groups/274867312718471/
Canadian Hackers: http://hh.gd/canada
HH European Union: http://hh.gd/europe
HH NYC: https://www.facebook.com/groups/392783994231221/
HH Seattle: http://hh.gd/seattle
Midwest Hackers: https://www.facebook.com/groups/288341158015791/
HH Brazil https://www.facebook.com/groups/hhbrasil/
λλλ: Functional Hackers https://www.facebook.com/groups/hhlambda/
HH Lisp: https://www.facebook.com/groups/760851353987620/
HH Logic programming: https://www.facebook.com/groups/hhlogic/
HH JavaScript: https://www.facebook.com/groups/719335188115212/
HH PHP: https://www.facebook.com/groups/389297074552662/
HH C: https://www.facebook.com/groups/hhcprog/
HH Perl: https://www.facebook.com/groups/hhperl/
Python Hackers: https://www.facebook.com/groups/721736427908410/
Ruby Hackers: https://www.facebook.com/groups/HHRuby/
HH Rust: https://www.facebook.com/groups/hhrust/
HH Gophers: https://www.facebook.com/groups/hhgophers/
HH Matlab/GNU Octave: https://www.facebook.com/groups/hhmatlab/
HH R: https://www.facebook.com/groups/hhrprog/
HH Webdev: http://hh.gd/webdev
HH Linux Users: https://www.facebook.com/groups/582691025194939/
HH FSF/GNU: https://www.facebook.com/groups/530926930377277/
HH Church of Emacs: https://www.facebook.com/groups/hhemacs/
HH Vim: https://www.facebook.com/groups/hhvim/
HH Networking: https://www.facebook.com/groups/hhnetworking/
HH Semantic Web https://www.facebook.com/groups/hhsemantic/
Information Security: https://www.facebook.com/groups/773334272725281/
HH Seeking Collaborators: https://www.facebook.com/groups/517926818351073/
HH Hack Sleep: https://www.facebook.com/groups/283617808512688/
HH Futurism: https://www.facebook.com/groups/568175936642925/
HH Stocks: https://www.facebook.com/groups/1571495513082515/
HH Couch Surfing: https://www.facebook.com/groups/726089960809105/
HH Hacking Hackathons: https://www.facebook.com/groups/857498367601915/
HH Find Teammates: https://www.facebook.com/groups/454867721317036/
Cirque du Twerque: https://www.facebook.com/groups/HHCirqueDuTwerque/
Hacker Problems: https://www.facebook.com/groups/291381824396182/
HH Snackathon Snackers: http://hh.gd/snackers
HH Stackathon Stackers: http://hh.gd/stackers
HH Jokes: https://www.facebook.com/groups/hhjokes/
HH: What Are You Twerking On?: https://www.facebook.com/groups/hhtwerk/
HH Bæsed Andy: https://www.facebook.com/groups/346246492209784/
Sovereign State of Real Singles: https://www.facebook.com/groups/realsingleshhct/
Wankathon Wankers: https://www.facebook.com/groups/WankWank/
WW What Are You Wanking On?: https://www.facebook.com/groups/wwwaywo/
High School Hackers: http://hh.gd/highschool
HS Offers: http://hh.gd/hsoffers
Ladies Storm Hackathons: http://hh.gd/ladies
Latino Hackers: http://hh.gd/latino
Upcoming Hackathons: http://hh.gd/events