Ask HN: Is there room for a responsive ad network?

As a web developer I know the pain of integrating external libraries and code into your website. Insert a single ad network, watch the number of requests double. Insert a social sharing app and watch them triple. Often their Javascript is far from optimised, altering the DOM multiple times adding more latency and causing your browser to re-render the page for each alteration. So I've started what I'd hoped to be a weekend project. Writing a fast ad-network with the idea that 90% of the money spent of the advertiser would be passed to the publisher and everyone will be happy. Do you use a blogging engine? Which one? (I'll write you a module/plugin!) So - advertisers and publishers out there; What do you require from an ad-network? Now is the time to shape a technology that many sites (perhaps including yours) rely on.