The conference was preceded by Tech for Justice Hackathon, held 21-22 June 2014 in San Francisco.
The conference Website is at: http://www.odr2014.org/
The conference agenda is available at: http://www.odr2014.org/agenda/
Videos of some conference events are available at: http://www.ustream.tv/channel/odr-2014
The Twitter hashtag for the event appears to be: #odr2014
The Twitter account for the conference appears to be @ODR2014Forum
For other resources related to this conference, please see the comments to this post.