These are of great interest to me as a Teacher librarian. Librivox looks like a hugely valuable site for all sorts of classics like Shakespeare and for poetry. I'll have to try it at school.
With student laptops now in operation the availability of e-books is also something that has been widely discussed. Our introduction to Google Reader rings bells here and in fact I directed a Year 12 English Extension student to it only this week.
Alternate media open a whole new kettle of fish!