Providing local information during an “internet kill switch”.

Due to recent events in Egypt and the speed of the shutdown.

Most of these projects are open to contribution and further development.

B.A.T.M.A.N –  http://www.open-mesh.org/

Roofnet | http://en.wikipedia.org/wiki/Roofnet

GNUnet | https://gnunet.org/

Netsukuku | http://en.wikipedia.org/wiki/Netsukuku

Open Mesh Project | http://www.openmeshproject.org/

OLPC Mesh Network | http://wiki.laptop.org/go/Mesh_Network_Details

Digitatas | https://sites.google.com/a/opensailing.net/digitata/

sMesh | http://www.smesh.org/

Coova | http://coova.org/

Babel | http://www.pps.jussieu.fr/~jch/software/babel/

SolarMESH | http://owl.eng.mcmaster.ca/~todd/SolarMESH/

WINGproject | http://www.wing-project.org/

Wikimedia list of ad-hoc mesh protocols and packet routing

Even bigger list of ad-hoc routing protocols http://en.wikipedia.org/wiki/Ad_hoc_routing_protocol_list

Commercial projects:
Meraki ( google funded) | http://meraki.com/
Firetide | http://www.firetide.com/