What were the most important advances in cutaneous biology of the past 100 years? The Nature Milestones website provides a detailed answer to that question, along with similar responses regarding light microscopy, cancer, and gene expression. All told there are ten special features on the site, and each feature includes an interactive timeline, scientific commentaries, and a selection of articles from Nature magazine and other peer-reviewed publications. Additionally, each feature includes a list of academic advisors, sponsors, and links to external resources on the subject. Visitors may wish to use these resources in the classroom setting, as they provide basic and advanced materials that can be used by a number of introductory courses. Finally, a number of the materials are also available in the pdf format for easy printing.[--SAMPLE RECORD--]