Aladin Discovery (beta)
Aladin, the database used by the DC consortium universities, has developed a new interface called Aladin Discovery that is now in beta. However, even though it is beta, Gallaudet's library web page makes it easier to get into this than the older Aladin (which I like better actually). Problem is there is no way to import from Aladin Discovery and that's frustrating some students.
http://discovery.wrlc.org/?skin=ga
(ga is for Gallaudet, you can type in GW for George Washington U, au for American Univ., etc)
Then just search for a book. You will see that no Zotero icon appears in the URL pane.
It should be possible to make a translator for WRLC and similar catalogs rather easily -- I'll look into it.