introduction: in the age of information, in order for offering integrated library services to the users, librarians need to be knowledgable about new web technologies and their applications in library services, especially in medical areas.  this study investigates the level of knowledge and and usage of world wide web in library services among medical librarians in tehran. methods: the present ...

The Analytical Sciences Digital Library (ASDL) is a collection of electronic resources for teachers, students, and practitioners interested in chemical measurements and instrumentation. The ASDL collection is freely accessible at www. asdlib.org. This project has been funded by the National Science Foundation’s National Science Digital Library (NSDL) program. The NSDL (http://nsdl.org/) is an o...