Pornography, if understood to involve the depiction of sexual activity, organs, and experiences, is perhaps as old as human civilization itself. Historically linked to various technological innovations, pornography viewing in the Internet age has reached epic proportions, with large numbers of individuals taking advantage of ease of access, affordability, and presumed anonymity to explore sexual material online. Within the mental health professions substantial research exists on the effects of viewing general pornography; however, the distinctive effects of the marriage of pornography and cyberspace is only beginning to be examined. In addition to reviewing some historical and statistical material about pornography and the relevant psychiatric and psychoanalytic literature, four detailed clinical vignettes are presented to illustrate the types of problems related to Internet pornography use that are being presented to practicing psychotherapists.