The Facebook activity log gives users the ability to see everything they have done on the social network, from "liking" a Facebook page to commenting on a friend's timeline or posting a status update. From here, you can unlike or delete a post. It also tracks the Facebook apps used as well as the location of the device when logged into or out of Facebook. Does your activity log say you "like" something you don't? The log can provide clues into whether another person is using your account or if you have accessed an application that could damage your reputation. The Facebook log, rolled out last year, also tracks the searches made on the social network.