With the rapid expansion and growth of dermatology it is nearly impossible for a single textbook to provide up-to-date information with current references and clinical photographs essential to dermatology. Though the major textbooks of dermatology provide an excellent basis for dermatologic education, their ability to provide cutting edge knowledge is limited by the lag associated with the traditional publication process. Textbooks are also difficult to transport and use as quick therapeutic references. Conversely, a multitude of review articles, published in dermatology periodicals, provide excellent and timely information. Unfortunately, the articles are scattered among numerous journals, making it difficult, if not impossible, to screen every issue of every periodical for desired data. Hence, the appeal of electronic medical publications, which are easily updated and readily available over the Internet. eMedicine's online dermatology reference is such a resource.