24 hours of developers and designers jammin' hard on
existing open source projects in an effort to help make them
better and to encourage more people to contribute to open source
projects. Registration is free and open to the public.
Code Triage lists various open source projects, by language, that could use some help.
A new, open source discussion platform co-founded by Jeff Atwood. They were also kind enough to send us stickers for the event's participants.
Registration is free and open to the public. The exact date of the event is from Friday, May 9, 2014 at 7:00 PM to Saturday, May 10, 2014 at 7:00 (CST) at Launch Pad.