Recommendations for Performing Internet-Based Research on Sensitive Subject Matter with "Hidden" or Difficult-to-Reach Populations.

Since the mid-1990s, the rapidly increasing popularity of the Internet has contributed to a situation in which many men turn to Web sites to find sex partners with whom they can engage in risky behaviors. Scholars only recently began to examine the role of the Internet in harm-seeking and help-seeking behaviors. They are just now beginning to study and understand how to apply public health promotion principles to people using the Internet.