Hashtags became a part of everyday lingo for active Twitter users, but now they are popping up in the strangest places.  You are likely to find them on your television screen while you are watching your favorite shows, on printed pieces arriving in your mailbox, splashed across other social networks (Facebook, Google+, Pinterest, and Instagram), and prominently displayed on event banners, billboards, websites, etc.  So what is a hashtag and how do you successfully implement this tactic for your brand?