Facebook is the most popular  social media platform. Its actions—including buying Instagram and incorporating the active use of hashtags for search—indicate it has no intention letting competitors overtake it. Last week, the Palo Alto–based company made another announcement, introducing a new feature: Trending Topics.

Long a feature of rival Twitter, the Trending Topics tab will start to appear on members’ news feeds alongside the news ticker. However, while Facebook borrowed the idea, it is not just copying Twitter. Instead of just listing out the topics, a second line was added to give users a brief explanation of what the topic is about, and why everyone is talking about it.

But, as TechCrunch point out, the upper hand that Twitter has over Facebook is that, while many of Facebook’s users tend to worry about privacy and turn their security settings way up, Twitter is more of an open forum. This results in a much richer, more diverse and up-to-date trending news stream. Facebook’s trending stories, so far, seem to be more a collection of content from brand pages, celebrities, and a sprinkling of public figures that allow followers read their public posts.

It will be interesting to see how Facebook overcomes this…if it an overcome this.