Q. Where on-line would I find CommunicationsDept. theses?

If you go to this page: http://libguides.unomaha.edu/A-ZList, and clikc on the "Communications" and "Dissertations and Theses" links, you will get a list of databases to search with.  You probably won't find too many with full-text links, but the "Dissertations and Theses A & I" database will usually give you several sample pages, and you should be able to get a pretty good idea of what is out there.