A lot of words have been added to the dictionary over the past few decades thanks to social media, but few have become so widely used and accepted as "hashtag."
For a long time, the hashtag symbol (#) was known simply as the "pound" symbol. Now, I could swear that the only time I hear it referred to as a pound symbol is when I enter my PIN number to pay my cell phone bill.
While hashtags were originally made famous by Twitter, they're now used on many major social networks, including Facebook and Instagram. Let's explore what a hashtag is, why they're so great, and how they work on Twitter, Facebook, and Instagram.
Via Kamal Bennani, Giuseppe Fattori