To truly learn something, go to its source.
Tutorials about the subject are helpful. Talks and books and conferences are fine. But the best way to learn a new technology it to go right to the source. To the documentation. Always prefer a firsthand account.
If you’re on a Mac, get Dash, and get used to reading docs. Mediocre developers start pulling away from the pack if they take the time to read source code and documentation.
Hit the docs before you question Google. Track down code trails in the source of your favorite framework on Github. It’s all letters and numbers—you can understand it eventually. Read more than you planned, and never stop being curious.