3M UK recently launched a massive integrated online marketing campaign, with online advertising, e-mail marketing and a dedicated website : http://www.3meverywhere.com. This site features 3M products, but most of all hosts a unique interactive movie / game. The game idea is terrific : it's engaging and entertaining while showcasing the 3M products.
It's one of the best innovative digital marketing cases I've seen lately. And that, in a B-2-B context!