https://wiki.ubuntu.com/UbuntuGlobalJam

The Ubuntu Global Jam is an incredible opportunity for the Ubuntu community to unite together around the weekend to work together to improve Ubuntu. Everyone is able to contribute to the Jam, and everyone is welcome and encouraged to get involved.

• http://wiki.ubuntu.cz/UbuntuGlobalJam/4_2011
• http://wiki.ubuntu.cz/UbuntuGlobalJam/9_2011

• next session on facebok
• https://lists.ubuntu.com/archives/ubuntu-announce/2012-March/000156.html