- Text A Librarian
- Provides reference and library resources via SMS text messages. - Answerland (OR) - Oregon's Live Information Service, email or chat live with a reference librarian.
- Ask a Librarian: Info 24/7 - Info 24/7 is a chat reference service with real-time online assistance by Houston Public Library staff as well as librarians nationwide.
- Ask a Librarian: New York State Library - Guidelines and contact information to request help from a New York State reference librarian, via telephone or email.
- Ask Why KY? - An online live reference site where librarians answer your general reference questions, in email or via chat. Sponsored by Kentucky public libraries.
- Auburn University (AL) - Ask a Librarian email reference service for the faculty, staff and students of Auburn University.
- Florida International University (FL) - Email or chat with a FIU Reference Librarian.
- Free Library of Philadelphia (PA) - The Free Library of Philadelphia answers reference questions via an email form and live chat.
- Internet Public Library - Volunteer librarians answer general questions or provide starting places for research at the IPL Reference Center.
- Kansas City Public Library (MO) - Email form for asking reference questions of Kansas City Public librarians.
- Kentucky Virtual Library (KY) - Online form to submit questions to the librarians at the Kentucky Virtual Library.
- Lappponica - Northern information search (SE) - Information on Lapland, North Calotte and Barents Euro-Arctic, sami people. Provided via email by libraries and museums in Lapland. In Finnish, English and Swedish.
- Library of Congress (DC) - An online reference service (via email) from the Library of Congress. Live chat available for certain subject areas.
- People's Network - Electronic reference library combining resources of the UK's public libraries. Ask questions and check the archives for previous answers. Find readers' groups and reading links.
- Seattle Public Library (WA) - Seattle Public Library's Quick Information Center offers phone, email and live chat reference service.
- Southwest Minnesota State University Library - During the academic year, reference librarians are willing to answer short reference questions by e-mail.
- Tartu University Library, Estonia - Quick answers to brief questions about materials in the library's reference collection.
