Jesslyn, this is amazing, more PDFs! PDF is a format that is very easy to support, so while the systems team is trying to figure out what are the kinds of format that we can support, PDFs are a no-brainer. =)
Perhaps in the letters of intent for the Digital Contents, we can address exactly how the content will be used/collected by use for the portal? Where they are housed for example, the limits of how much we can modify the content (for the purpose of customizing the content for the print only, not to edit the work), are two issues that I can think of that would be interest to potential content sharers/providers.