Nike Better World
Probably more than any other large corporate brand, Nike have really taken it upon themselves to be socially aware. From their own considered product, through to their own HIV education programmes, they have done a pretty good job of it too. Nike Better World is a new website built to highlight many of these projects, but also allow others to learn about them, and be involved, and even spread word of others fight in these same issues.
The site built in HMTL5 by W+K is impressive in itself too.