1. A computer-implemented system including a computer processor configured to create an advertisement, the system comprising: a. an administrative toolkit configured to facilitate a template creator at a first location to create a template comprising a plurality of template portions, and to input content components to populate the template, the administrative toolkit comprising: i. a template definition and editing module configured to: 1. create the template at a development site accessible to the template creator and not accessible to an end user; and 2. establish rules governing content to be placed in one or more of the template portions; and ii. a template inventory management module configured to move a copy of the template from the development site to a production site accessible to the end user, thereby updating the production site; and b. an end-user interface configured to facilitate the end user at a second location to: i. access the copy of the template over an information exchange network after the copy of the template has been moved to the production site; and ii. populate one or more of the portions with content in accordance with the rules established by the template creator, whereby the end user can create a customized advertisement that conforms to standards set by the template creator, wherein: the administrative toolkit is different and separate from the end-user interface.
18. The system of claim 1 , wherein the rules governing content to be placed in one or more of the template portions comprise a rule prescribing that one or more of the template portions be populated by selecting a content component from a plurality of designated content components.