Tim Caswell describes the JavaScript variable 'this', which is about current scope and current context. The only way to create scope in JavaScript is through function definitions, and in most cases the context is the receiver of the message (the object before the dot in the method call). He also talks about approaches to controlling what this references with call, apply and bind.
Douglas Crockford's JavaScript code conventions. Covers indentation, line length, comments, variable and function declarations, minification, statements and labels, whitespace, scope and eval.