proper facebook groups are managed by tight asses that dont like you to spam youtube videos or any affiliate links. My personal account was banned from a group for posting a damn video on it. The owner even messaged me that what a spammer i was for posting a review utube video 6 times in a row, so she banned me from her "personal blog" on fb. Lol, so i didnt even bother replying. Make a twitter account, follow influential people in yer niche, and tweet useful crap for a day or two. then start using ifttt to automate a lot of twaats. if you make these auto tweets somewhat useful, they probably wont ban your butt out of twitter. according to cb, i managed to generate 500-600 hops an afternoon, but i think half of it was just the damn crawlers with no sales so far. some people will favorite your tweets and even retweet them even if these events wont make sense to you. just jump on the social media bandwagon while it lasts