One of the big problems with HTML5 Banners is the client preview & approval process. Corporate firewalls screen out file-sharing links .zip attachments and hosting ads for browser-based playback is a time-suck!
With my Banner Ad Portal, clients get their own dashboard for all their campaigns. They preview entire "ad sets" on one page, comment directly on top of each iteration and view their ads in-line on live websites. Once approved, they can even download their assets right in the portal.
BEST OF ALL—if you're an agency, your clients' get a white-labeled experience with YOUR brand identity so there's complete anonymity of my role as the designer/developer. You even get a sub-domain URL... "preview.YourCompany.com" Check out a few recent client builds.
Be The Match
Hazelden - Betty Ford