Chris Messina (inventor)

Christopher Reaves Messina is an American blogger, product consultant and speaker who proposed the usage of the hashtag as it is currently used on social media platforms. In a 2007 tweet, Messina proposed vertical/associational grouping of messages, trends, and events on Twitter by the means of hashtags. The hashtag was intended to be a type of metadata tag that allowed users to apply dynamic, user-generated tagging, which made it possible for others to easily find messages with a specific bigger theme or content. It allowed easy, informal markup of folksonomy without need of any formal taxono