Working my way through MTW, using Schutz (to fill in prerequisite explanations) and Wald (for advanced stuff).
www.alison.com/General-Science Learn Biology, Chemistry, Physics Online Self-Paced Certification
www.spacetimeandtheuniverse.com/ Discussion Forums for Physics, Cosmology, Math and other Sciences
www.spheritons.com/ Evidence proves Relativity false, revealing cause of gravity & light.
www.aber.ac.uk/en/undergrad/ Physics - A rich and diverse degree available in 3 or 4 year schemes.