Methods, systems, apparatus, and computer-readable media for generating and presenting customized information cards. In some implementations, an indication of a data set is received. Data indicating a selection of an element of the data set is received. An indication of items in the data set that are associated with the selected element is received. Data is received indicating a selection of one or more of the items that are associated with the selected element of the data set. Card data defining an information card for the selected element of the data set is stored. The card definition data can indicate the selected one or more items and a reference to the data set.