For those working with a publisher, be sure to work out arrangements for the e-book version of your print book. Maybe you will only have an e-book version. Particularly with smaller publishers, including university presses, check if they will do an e-book version in the first place. Thanks to SLPA member Kristin McLain for bringing our attention to this article on e-book contract negotiation tips:
Six Essential Issues in Any E-book Contract Negotiation