YouTube - IB like Cole - General IB - Videos on productivity, procrastination, planning, test-taking, etc.
YouTube - StudyNova - StudyNova has videos for IB Physics SL/HL, IB Math SL/Studies, and general IB
YouTube - Chris Doner - Physics
HyperPhysics - HTML Physics site with lots of detail
WordPress IB Physics Notes - IB Physics SL/HL notes by David Lin
Physics Olympiad (Competition) - Written multi-stage competition test
Updated as of June 15th, 2018