This document discusses and compares various chat and virtual reference programs that can be used by libraries. It provides information on key features of popular chat programs such as LibraryH3lp, LibChat, Mosio, Zoho Chat, and QuestionPoint. These programs offer cloud-based solutions that provide chat, email, knowledge bases and other features to enable virtual reference and assistance without requiring local technical expertise. The document also shares screenshots of chat boxes and dashboards from services like LibraryH3lp and Zopim to illustrate their interfaces.