Describes the Lippincott Library (Warton School, Philadelphia, Pennsylvania) online chat reference service for students/faculty/staff to ask questions through chat and get an immediate response using a commercial service provided by LivePerson. LivePerson is a real-time text interface between the user who seeks information and the operator (reference librarian). LivePerson features caller logs, user feedback, email default, system "stallers", transferring calls, and built-in statistical package. (LRW)