Yet another Google service frees its users from the tyranny of browse-and-select file picking. YouTube offers drag-and-drop video uploading on modern, HTML5-happy browsers like Chrome and Firefox.
It's a bit odd that the feature doesn't perhaps support Safari and Opera, both of which are fairly HTML5-friendly, but it's a nice time saver for serious YouTube users in any case.
Drag and Drop Uploading for YouTube Videos [Google Operating System]