Electronic reference services (Libraries) Computer network resources 1 Computer network resources -- 1 Computer networks 1 Design 1 Digital libraries 1 Distance education 1 more ... Education, Higher -- 1 Effect of technological innovations on 1 Electronic information resource searching 1 Electronic information resources 1 Evaluation 1 Instant messaging 1 Internet in higher education 1 Internet in library reference services 1 Internet searching 1 Libraries -- 1 Libraries and distance education 1 Library Web sites 1 Library Web sites -- 1 Library applications 1 Mobile communication systems -- 1 Online databases 1 Public services (Libraries) -- 1 Reference books 1 Reference services (Libraries) 1 Reference services (Libraries) -- 1 Special collections -- 1 Text messages (Cell phone systems) 1 Universities and colleges -- 1 less ...