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Jan16-12, 07:50 PM
Free (open sourceish?) physics book
... + other topics: have a play.
(A lot of colleges have been putting their course-notes online.)
The Feynman lectures are available in a torrent - though I don't think they will be out of copyright and I don't know the terms.
There's quite a few pdf's for gratis and even cc download within an easy google and they look very similar. Which level are you looking for?