Pure genius spoof for Pot Noodle (aka the slag of all snacks) from James Hilton & Co at AKQA. If you don't know the product or the audience, this may be hard to get.
Made by Blink Digital (the company behind the Slob Evolution video spoof of the "Dove Evolution" campaign.)A classic demonstration of how TV increasingly borrows from the web.
Smirnoff's Raw Tea online campaign launched in 2006 and hit the right self-parodying tone to gain traction on YouTube. This was one of the first campaigns to use little more than YouTube as the distribution channel.