Often used at the end of a message, hashtagging is performed by inserting the hashtag key (#) into a post that a user is sharing with others.
The hashtag key will then activate links to popular topics capturing the most attention and circulation at the time.
Standard Definition Exists?
A type of label or metadata tag used on social network and microblogging services which makes it easier for users to find messages with a specific theme or content.
Year first used/coined:
Brian Kerninghan and Dennis Ritchie