BoB stands for Band of Brothers
Official killboard with all the corporations in BoB is http://www.killboard.net.
BoB is not an official alliance nor an unofficial alliance. The corporations in BoB has no obligations to each other whatsoever (apart from not shooting each other) and there are no official policies that every corp within BoB has to follow. Action is taken strictly on a corp-per-corp basis but is often seen as BoB taking action by outsiders since very often more than one corporation tag along for the ride.