When I first overhead the term hashtag used at a cocktail party, I have to admit I thought people were talking about some new effort to stigmatize marijuana users…and... these people really need a social media policy... so don't feel badly if you’re thinking to yourself, didn’t we call that a number sign(#) or pound sign?

Hashtags are social media speak for an affinity group and they are one way to share your ideas, conversations, and content beyond your loyal group of immediate followers on social media networks like Twitter.

Source Name: 
Social Media Today
Author Name: 
Kevin Jorgensen