The Columbia University Library has been offering the Ask-A-Librarian virtual reference service for many years. This poster analyzed the Ask-A-Librarian instant messaging (and text) use stats over the history of the service at Columbia University. In addition, for more recent years statistics collected with the LibraryH3lp native interface and those manually collected with Desk Tracker were also compared. The poster also illustrates how some of these use stats have been put to use in past assessment projects, and how some of this data could be used for future planning.