My favourite resource is my blog (not for you dammit, get your own, my blog is teaching me) - I start out with a question - eg "How does Go decide where to put something on the heap" and then spend days or weeks trying to answer that, and writing a coherent explanation on my blog so that I can refer back to it when I want to refresh my memory.
I learn a hang of a lot from books, but having to research code/blogs/mailing lists and ask questions from people ends up being a LOT more educational, the write up is just as educational because I notice when I don't have a complete understanding, when I wave my hands or when it doesn't "fit" logically, which means I have some more research to do.
I learn a hang of a lot from books, but having to research code/blogs/mailing lists and ask questions from people ends up being a LOT more educational, the write up is just as educational because I notice when I don't have a complete understanding, when I wave my hands or when it doesn't "fit" logically, which means I have some more research to do.