During this early stage of HIT adoption, it is critical that we engage in discussions regarding informed consent's proper role in a health care environment in which electronic information sharing holds primary importance. This article discusses current implementation of the doctrine within health information exchange networks; the relationship between informed consent and privacy; the variety of ways that the concept is referenced in discussions of information sharing; and challenges that surround incorporation of the doctrine into the evolving HIT environment. The (...) article concludes by reviewing the purpose behind the traditional obligation to obtain informed consent and the possibility of maintaining its relevance in the new environment. (shrink)