I tried it by myself, which was very interesting, but after a few days of frustration and failing miserably to solve the last layer I had to get some help...
"Notes on Rubik's Magic Cube" by David Singmaster (damn, that was confusing!, lol). I think it was the first work ever published about the cube. Still a great read, I like old school stuff.
Then I learned F2L by myself (it wasn't very efficient of course) but I like figuring things out. Then videos from badmephisto, frk17, and some others. OLL and PLL algs from Yu Nakajima and Erikk Akkersdijk.