Facebook joins Twitter, Instagram and Flickr in hashtag club

If you get annoyed when people post non-functional hashtags on Facebook, you'll be pleased with this news.

The social network has announced that hashtags will finally be clickable on Facebook, beginning immediately. "Similar to other services like Instagram, Twitter, Tumblr, or Pinterest, hashtags on Facebook allow you to add context to a post or indicate that it is part of a larger discussion," Facebook wrote in a statement.

The hashtag gained in popularity in 2009, when Twitter began hyperlinking them to search results. Hashtags, which are often used to clarify or add context to a post, have extended beyond Twitter in recent years to services like Google+ and Yahoo's Flickr.

On Facebook, you can now click on a hashtag to see a feed of what other people and pages are saying about the same event or topic. If you're looking for something specific, you can search for hashtags, like #NBAFinals, directly from the Facebook search bar. If those posts provoke a thought you want to share, you'll now be able to compose your post directly from the hashtag feed or search results.

Even better — all the hashtags on Facebook that originate from other services, like Instagram, will now be clickable.

"Hashtags are just the first step to help people more easily discover what others are saying about a specific topic and participate in public conversations," Facebook said.

The social network promised to roll out additional features in the coming weeks and months to "surface some of the interesting discussions people are having," including trending hashtags.

Rumours about hashtags on Facebook first emerged in March, though the social network declined to confirm the move until now.