Created by the National Eye Institute (a division of the National Institutes of Health), this site is an online repository of images of the eye, eye diseases, research and clinical information.
From MIT’s OpenCourse program, this is an introduction to electronics, “designed to provide a practical – hands on – introduction to electronics with a focus on measurement and signals.” Includes readings, lecture notes, exams and lab exercises.
Companion site to the Smithsonian’s traveling exhibition, this online exhibition explains how satellite imagery is used to learn about our planet. Includes the following sections: Living Planet, Water & Air, Structure of the Land, The Human Presence, and Satellite Technology.
From Leicester University, this is a great site for students and those interested in the field of microbiology. Notes, online tutorials and lab experiments are available on a variety of topics.
Information from US Customs & Border Protection on basic imports and exports can be found at this link. Included in the site is how to import a motor vehicle.
The National Library of Medicine has created this database of health-related toll-free numbers. Users can browse by subject, search by keyword or download the entire 129-page document. Spanish language information is available as well.