Honestly a simple facebook Fan page would do the trick. It would take no resources at all.
Just someone to be the admin.
A lot more people would accept the request to "Like" the page. It's virtually no effort on their part.
Then, the admin can send posts about the latest cause i.e. who to boycott and who to email or call about why you're boycotting.
Teh bookface sparked a revolution in Egypt. It can handle this.
I know little about Facebook, but will be happy to provide whatever I can.
I still think we'd need a legitimate foundation if we were to decide to issue press releases and such. Maybe not to the level I was thinking before, but at least a page describing the mission and encouraging people to jump in on the Facebook deal.
I'm in. Somebody step to the front and drive the bus.