Physics

"The Physics Classroom is an online, free-to-use physics website developed primarily for high school physics students and teachers. The website features a variety of sections intended to support both teachers and students in the tasks of learning and teaching physics."

"The American Physical Society represents some 48,000 physicists, and most of our work centers on scientific meetings and publications-the primary ways that physicists communicate with each other. With PhysicsCentral, we communicate the excitement and importance of physics to everyone. We invite you to visit our site every week to find out how physics is part of your world."

"Physics Today, the flagship publication of The American Institute of Physics, is the most influential and closely followed physics magazine in the world, informing readers about science and its place in the world with authoritative features, full news coverage and analysis, and fresh perspectives on technological advances and ground-breaking research."

"PubMed comprises more than 22 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites."

"Science.gov searches over 55 databases and over 2100 selected websites from 13 federal agencies, offering 200 million pages of authoritative U.S. government science information including research and development results."