Tweeting in the classroom has started to take off, with some notable examples such as Monica Rankin's history class experiment at UT-Dallas and Cole W. Camplese's classroom backchannel at Penn State-University Park. Taking these experiments one step further, one Baylor University professor invited a librarian to participate in his First Year Seminar's Twitter experiment by becoming the class's Twitter-based reference librarian, visible in a Twitter stream and in the class's "motherblog" (class learning visualization). This presentation will highlight the professor's, librarian's, and students' experiences with the class, summarize best practices, and suggest opportunities for application within your own institution.