A graphical user interface (GUI) allows a picture database user to enter metadata serving to annotate digital pictures to promote efficient picture database browsing. The annotation is permitted, not just for individual pictures, but for groups of pictures. The annotation information can be entered quickly, via a user-friendly interface (200, 204, 206), and can contain "social" information (via 116, 118 and 120) about groups of pictures (130-146), such as capture location, date and time, people or objects featured in groups of pictures, and events recorded by a group of pictures.