Mashable's Future of Online Ads is Huge
Interesting that they haven't sighted Myspace's earlier attempts as the site has been doing this for a while. The Dark Knight was even there for the relanch of Myspace's new look and feel homepage. Which was designed for advertising in mind. (oh and the user)
I know as an agency we love these formats as they have huge impact. 468x60 is too small. 728x90 is not a great format. Where as these are huge and they have impact. Portal love them too as it makes them a lot of money and they show off to other brands what is possible.