University of New South Wales (Australia)
University of New South Wales: Einstein Light
Einstein Light highlights the Theory of Special Relativity and related topics. Learn how Galileo, Maxwell, and Einstein contributed to our knowledge of relativity, electricity, magnetism, and time by watching fun, interactive modules.
University of Toronto (Canada)
Harrison/special Theory of Relativity
This page provides an incredibly detailed description of Albert Einstein's Special Theory of Relativity. Definitely an excellent website with great pictures and examples!
Libre Text
Libre Texts: Physics: Distortion of Space and Time
If the speed of light remains a constant then time and distance change. Oh, it can be confusing! This text will help clear up the confusion. Discussion questions should serve to reinforce comprehension.and exercises
Georgia State University
Georgia State University: Hyper Physics: Special & General Relativity
This site from the Georgia State University provides an interesting chart form of the ideas of relativity. Column 1 - Idea, Column 2 - Experiment. Each item is linked to its own page of explanation, which is well done. A nice type of...
University of Virginia
University Virginia/time Dilation: A Worked Example
Here's a solved problem in time dilation. It's still not easy to follow, but it's doable. The math is not difficult, but the mathematical thinking is demanding.
Bartleby
Bartleby.com: Einstein "Relativity: The Special and General Theory"
This page presents the actual text of Albert Einstein's book "Relativity: The Special and General Theory." Just click on the chapter titles to read the text.
University of St. Andrews (UK)
University of St. Andrews: Special Relativity
A historical approach to special relativity, giving all the events and names in the history of discovery of special relativity. Many links to these individuals.
CK-12 Foundation
Ck 12: Physics: Relativity Study Guide
Review your understanding of relativity with this study guide.
Other
Fear of Physics: Albert Einstein's Theory of Relativity
Fear of Physics uses animations and simple language to teach the theory of relativity.