HacktionLab is a UK-based volunteer run grass-roots project that has various activities, including the hosting of regular UK-wide gatherings for tech-orientated activists in the UK, and a summer not-so-techie gathering open to everyone. It all published a booklet "Tech Tools for Activists" in November 2010. It is associated to the UK Indymedia Network in the sense that there are people involved in both projects, but is not in any way a sub-project.
More at it's web site http://hacktivista.net/hacktionlab
-- AdelaydeSkidmore - 01 Dec 2010