Some people are giving access to quality content in exchange for a social media signal, a Facebook like, share, tweet, etc. Is it ethical to do so? Shouldn't someone view the material for before approving it? For instance, what if I liked some material to gain access, then I found it wasn't good. Well, I guess I could take the tweet back. I'm assuming most who are disappointed will give it back. Otherwise, the search results would be a fraud because search engines, especially Google, are giving higher rankings to websites with better social signals.