When it comes to content on the internet, there's always the chance that you could be illegally using copyrighted material. One thing I found though, is that sharing content is much more safe than just outright posting someone else's content.
If you want to share something, say something from social media, you can, but make sure you tag that person/company as well as link back to it if possible. As well, you should also ask for permission just in case, as some people will still come after you even if it's just content you shared.
What do you think on this subject though? Do you think sharing content is fine as long as it's sourced back to the original creator?