7 hashtag truths everyone should know

The hashtag—a symbol also commonly and perhaps formally known as the pound sign, octothope or tic-tac-toe board—is one of social media’s most prominent elements (#overdone). The little bugger has nuzzled its way into every social media network, including Twitter (#duh), Google+, Pinterest, Instagram, Vine and even that plummeting pastime, Facebook. And, of…