AccessScience, McGraw Hill's Online Encyclopedia of Science and Technology, is currently offering a four-week, free trial. This leading, searchable, regularly updated science encyclopedia contains more than 71,000 articles, 115,000 dictionary terms, and hundreds of research updates. Other features include a biography section, In the News, a student center, and links. For four weeks of free, full access to this outstanding resource, users are required to complete an online form.