Allison Your points are well thought out; but I still have to agree totally with Shelley for legal and ethical reasons. The one point I want to adress is your number 3. The user base of BookShare and NLS are not necessarily one and the same. Yes, BookShare, for the convenience of its customers, accepts participation in the NLS program as a proof of disability. However, you needn't be a NLS patron to take part in BookShare. Also, if the NLS collection suddenly became a part of BookShare, this might preclude BookShare, at some point down the line, to offer its service internationally. Also, some NLS patrons, now that I think of it, cannot use BookShare services. BookShare technically requires residency in the U.S. or its territories; NLS provides service also to those living abroad who happen to be U.S. citizens. So the patron base isn't identical.