In past versions of Visual Studio, two useful drop-down lists existed over your main development window that would let you easily add new auto-generated page or object level events. These drop-down lists are commonly known as Server Objects and Events. Microsoft counter-intuitively calls these drop-down lists the Navigation bar.
Being able to write and test code snippets in your Web browser in collaboration with others anywhere in the world is an empowering experience. This is especially true when the tool is free for anyone to use. I can see no better way for developers to learn new languages or code better applications when the old-school barriers of software and hardware are removed.