I'm not sure which social media website to use. Which one is easiest to reach people on a global scale most effectively/efficiently. They always seem to give you the run around or put all types of restrictions on what you can do. Need help.
Depends what you are into. If you're interested in casually keeping up with old friends I would recommend Facebook. If you are particularly interested in pictures and photography I would recommend Instagram. Twitter is great for keeping up with news but not so much people. If I could only keep one for the rest of my life it would be Facebook due to the fact that there it is the best way to keep up with people.
Sound seems, you are looking social platform for business purposes. So, at this stage Google Plus, Facebook, Twitter, and Linkedin these all social platforms are good to reach at Global Scale. But how much you can grow in social network it depends how much time you are giving that profiles. And how you are reacting on participation.