Facebook now uses clickable #hashtags.
The number-one social network adopted the practice from its rival Twitter. If you haven't used them, they're simple; try typing #phillies in the search bar on your newsfeed. Click on the phrase and you'll see more posts about Philadelphia's baseball team.
Until now, Facebook had no way to aggregate posts about hot topics. They don't seem to mind using Twitter's innovation, either, pointing out that the method is already used on Instagram, Tumblr and other social media.
Click here to learn how marketers can use Facebook hashtags to expand their reach.