Systems and methods for tagging digital content are provided. In some embodiments, a method comprises receiving and storing personal data of a first user of an internet-based social network. The personal data of the first user can include one or more digital images or other digital content that the first user is willing to share with other users of the social network. Accordingly, a request from a second user of the internet-based social network can be received to view some of the digital content of the first user. A viewer image can be used to tag the digital content of the first user allowing the owner of the digital content to quickly determine the viewers. The viewer image can be a personal profile picture, an image, an icon, an avatar (two-dimensional or three-dimensional), or other on-screen representation that includes a visual indicator of the second user.