There are definitely places where you can earn some coin using any social media. I would check out the services section of the forum and see if you can get any leads there, more importantly if you get enough followers on social media you should be able to make a decent income.
Of course you can. There's a lot of option for you to earn bitcoin. Like twitter campaign, translation, facebook campaign and a lot more. You can learn it when you join groups. They will provided information and also rules for you to follow.