In some respects, physicians are technological trend setters. But within the physician community, there are sharp differences in technology adoption. A new study shows that in regard to Internet technologies, these differences are related to physician demographics rather than to professional variables such as specialty, practice setting, or the number of patients they see per week. Researchers associated with the Centers for Disease Control and Prevention (CDC) looked at physician use of seven Internet-related technologies: social networking websites, portable devices to access the Internet, email to communicate with patients, podcasts, widgets, RSS feeds, and blogging.