Electronic reference services (Libraries) Academic libraries 4 Reference services 3 Evaluation 2 Reference services (Libraries) 2 Academic librarians 1 Automation 1 Computer programs 1 Consumer satisfaction 1 Effect of technological innovations on 1 Internet in library reference services 1 Libraries and the Internet 1 Library Web sites 1 Library applications 1 Management 1 Mobile communication systems 1 Public services (Libraries) 1 Quality control 1 Reference librarians 1 Text messages (Cell phone systems) 1