The Interactive Pathology Laboratory (IPLab) offers an interactive, case-based approach for learning the concepts of Pathology. IPLab The program consists of approximately 100 cases outlining clinical and laboratory findings along with gross photographs and photomicrographs accompanied by descriptive text. The program has been designed to complement Robbins ''Pathologic Basis of Disease'' with groups of cases organized into laboratory modules that follow the sequence of chapters in the textbook. The IPLAB.net Web site contains a discussion board where students can post questions that either faculty or other students can answer. The Web site also contains links for other on-line resources related to the specific topic areas of interest. Quick and efficient access to high quality image files and built-in links to Internet based discussion forums and resource sites make the Interactive Pathology Laboratory program a unique and powerful educational tool. In addition to providing content, this program also encourages and facilitates communication and "information seeking" behavior - traits we would like to encourage in our medical students.