[TheThinkTank] Creating a think tank

Hello everyone!

We are interested on see how the thinktank works and how to replicate it, does anyone knows? we are trying to setup something like the bike collectives think tank with the city feminist groups but using facebook or whatssap has proven very complicated so, if you know any way on forming a thinktank or other ways of mass communication with different groups that doesn't required to be all day in front of a screen and/or saturates your inbox will be awesome.

Regards

R.