The humble hashtag celebrates its tenth birthday today, and it's easy to forget that there was a time when we didn't use it the way we do today.
The hashtag originated on Twitter as a way of categorising what people were talking about. It has since spread to other social media outlets, such as Instagram, and has become an integral part of everyday communication.
Nadine O'Regan, arts editor of the Sunday Business Post, and Doug Keatinge of Murray Consultants joined us to discuss the influence of the hashtag.
Listen below:
