I don't use Facebook either, but love Pinterest and highly recommend giving it a try. I have a healthy eats board and a health board and just tried to pin the "12 minute seated core video" but I could only pin a default (kind of ugly - sorry) generic blue dot image, not the video image.
Pinterest is all about the visual! I wish SP could allow better pinning for public content. I think it would bring a lot of positive attention to SP.