I've experimented with Instagram and looking to expand my knowledge to others, but I question what ones are worth it. Instagram: Simple, has hashtags and easy to find new stuff. Method: Follow/unfollow, likes, comment Twitter: I assume it is like Instagram and has hashtags that makes it easier to find new people? Method: Follow/unfollow??? Facebook: Not sure about this source, it seems hard to meet new people Method to grow: UNfriend/friend??? Tumblr: Also not sure what benefits from this source, as it is blog based. Pinterest: Totally new to me Currently in college for econ, but wanting to specialize in social marketing. So curious on a business standpoint how these sites work to help grow and what benefit each one has.