Facebook is introducing hashtags

Facebook is introducing hashtags, the number signs used on Twitter, Instagram and other services to identify topics being discussed and allow users to search for them.

Facebook Inc. said Wednesday that people will be able to click a hashtag to see a feed of discussions other users are having about a particular topic. For example, typing a number sign in front of “ladygaga” or “sunset” will turn the words into a link that users can click on to find posts about Lady Gaga or sunsets.

Facebook says hashtags are a first step toward making it easier for users to find out what others are discussing. The company is not giving details about other tools it might introduce.

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