I prefer to just use nano, since it doesn't make angry beeping noises at me, but pretty nice tutorial if you want to learn vim.
Reshared post from +Scott Ferguson
Pretty cool introduction for anybody who wants to learn Vim
Interactive Vim tutorial
Home Tutorial Sandbox Two sandboxes Testing Bug/Request. / <Enter to find>. Virtual keyboard (shows keys you need to press on your physical keyboard; not clickable). Sections. Toggle.