Abstract
We introduce our user support by online databases and the Internet according to the following three points. 1) Service of online databases and short seminar about them 2) Examples of E-mail reference 3) The activity of the Meeting of Cooperative Reference Service between our library and city libraries and the result of questionnaire by the Meeting about the Internet service among the libraries of Tokyo. About this result we focus on the analysis of the present situation of online databases introduced by each library.