Visual Quantum Mechanics by Zollman et. Catalog of Bohm's Books has been posted to the web by an organization to promote his works called David Bohm's Dialogues. David Bohm home page is maintained by William Van den Heuvel. He also has a very high-quality exposition on GUTs, TOEs, string theories, etc. in the Cyclotron Notebooks . John Deutch has discovered some interesting relationships among fundamental physical constants that involves the golden mean.
Modern physics has no explanation for particle masses.
Theory of the Wavicle by Christie is one of the most ambitious amateur expositions on the internet of alternative physics explanations, focusing on the electron and a postulated helical spin, with extremely thorough and intricate mathematics. Caroline Thompson has written thoroughly on reinterpreting Bell's results on the EPRB experiment and Aspect's actual data and findings. Internet Science Journal in Belgium offers free peer review to help in publishing theories.