Abstract: Disclosed are systems and methods for providing customized advertisements in electronic publications distributed by email, which advertisements have a look and feel matching the look and feel of non-advertisement content of the email electronic publication. The invention addresses the way in which customized electronic advertisements appear in electronic publications, and more particularly computer-implemented methods by which custom-selected electronic advertising data is reformatted in real-time for integration with an email electronic publication and displayed with a look and feel that matches the look and feel of the non-advertising content of the email electronic publication.