Methods, systems, and apparatus, including computer programs encoded on a computer-readable storage medium, for campaign management. A method includes: presenting a user interface to a sponsor for customizing targeting information for a campaign including a control for specifying targeting criteria, where at least one targeting criterion includes a presence of a user in a proscribed geographic location or an indication of an interest by a user in the location; receiving a selection from the sponsor of targeting criteria to be associated with the campaign including a selection of one or both of user presence and interest; evaluating content delivery options for presenting content associated with the campaign including determining for a given content request whether a user is present or merely interested in a geographic location; and serving content from the campaign when a content item request satisfies the targeting criteria for the campaign.