Etalab is the group in charge of developing the French national open data site data.gouv.fr, the initiative is headed by Séverin Naudet.
They have the usual communications/engagement channels, including
- http://www.dailymotion.com/etalab (DailyMotion is a French video sharing site)
They don't seem to have a big Twitter presence (please feel free to point out any relevant accounts) but you can track some info by following hashtag #etalab
Séverin Naudet has done a lot of interviews, here is his latest one, from Europe1
Severin Naudet dans "Petit stream entre amis" by etalab
In passing he mentions he was in charge of the rationalisation of the French national government websites, through reorganisation the number of sites will go from over 750 to about 60.