We have added a flexible, secure file transfer system to your Account area, where you can upload applicable Model Releases for any -accepted- art that features a recognizable face (or a minor).
http://www.zymmetrical.com/Account/ModelReleases/tabid/1424/Default.aspxOnly one model release is required for a series of pieces using that model, so if you have 10 pictures of the same person, just upload one model release document, and then add the inventory names (i.e. ZYIMGPPL00034) of the files that feature that model into the 'Description' field.
We have some ideas already to improve this area (tying it in with the Art Manager for example), but for now it's a step ahead of the 'old way' of emailing in release forms. Please let us know if you have any suggestions!