EntityQ3480383· pop 6· linked from 114 articlesdigital referenceSign in to saveservice by which a library reference service is conducted online, and the reference transaction is a computer-mediated communicationConnectionslibraryEntitylibrary and information scienceEntitylibrary reference serviceEntitylist of librariesEntityFacebookConceptYouTubeConceptemailEntityInternational Standard Book NumberEntityWorld Wide WebEntityblogEntityWayback MachineEntitydigital object identifierEntityarchivesEntitySMSEntitychatbotEntityFlickrEntityinstant messagingEntityOCLC, Inc.EntitylibrarianEntityWeb 2.0EntityCategoriesLibrary resourcesReference