Sources of orders

I've been selling Doctor Esker's Notebook for a couple of weeks now. I've paid for a little advertising on Facebook and Google, but most of my customer traffic has been via Facebook, where I've posted general announcements on my feed and also posted to my very active college class page (Harvard-Radcliffe 1991). So far, the HR91 folks have come through in a very big way and represent nearly half of my sales. Here's the distribution, classified by segments of my life:

Those folks who have no connection to me, the purple wedge representing ten orders, are the group that needs to grow if I'm going to expand sales very much. I only have so many affinity groups that I can go to personally. The question is how best to reach outside those groups to people who would just take a chance on the game without a personal connection to me.

I would imagine this is what most boardgame Kickstarter campaigns look like, at least in the early stages, so even though I've already printed, this is probably parallel in terms of audience.