I have a friend who is a rabbi of a small but extremely cool, open orthodox synagogue on the Lower East Side (he's also a former web developer) He's done crowd funding before for the synagogue, since the building is historically important. Due to the fact that the congregation is open to whomever showing up, compared to other orthodox synagogues on the LES, he has an extremely tech literate crowd.

It might be a good match if it works for not-churches.