Try exploring the following links. Some are useful for particular topics, others for general physics and some are useful for revision. The general of the internet is that the more you click on, the more you find so get clicking!
How Stuff Works.... one of the greatest websites of all time!
Bad Science - when science goes wrong...
Bad Astronomy - where fact meets fiction
Physics Timelines - what happened when
All about forces
Weight on Other Planets - Mass/Weight, what's the difference?
Centre for Alternative Technology (CAT)
The Physics of Fun Fairs
Sir Isaac Newton - The great man himself
Sumana Inchas some useful animations of a variety of processes.
Everything You Ever Wanted to Know About Gyroscopes
Monkey and Hunter
Mechanics - Kinematics explained
Antonine Education - awesome revision site modelled on AQA A Level syllabus.
General Science Questions
These sites allow you to either pose your own questions or browse through archives of previously asked ones:
Notes & Queries
The Why Files