This issue of "Perioperative Nursing Clinics", guest edited by Joy Don Baker, PhD, RN-BC, CNE, CNOR, NEA-BC, will focus on Informatics with topics including: Distance education; computer science and cognitive science; role of the perioperative nurse as informaticist; cyber diving: literature search; website evaluation; bibliographic software; relational database programs; virtual learning environments; digital divide; and social networking legality.