Background:
Little is know about NGI-MSM sexual risk behaviors particularly NGI-men who have sex with men and women. Anecdotal evidence suggests that these men are using the Internet to find male sex partners.

Objective:
An online survey was developed to collect behavioral information on MSM including men who have sex with both men and women in order to identify if this latter population: a) would respond to an online survey and b) constitutes a high-risk, bridge population.

Method:
An online behavioral survey was conducted April through December 2005. The survey collected data from over 851 men and included questions on sexual behaviors and STD history.

Result:
162 men (19%) of the total sample did not identify as gay. All had sex with another man within the past 12 months. 23% reported female “main partners”. The majority of respondents are not using condoms with their main sex partner regardless of gender. 31.5% stated that they had ever been tested for a STD; 13% had never been tested for a STD. 33% had tested within the past 3 months, followed by 27.5% that had not been tested in over a year. The top two venues for STD testing were at a doctor's office and at the health department. Only 10.5% of the men reported a STD as reported to them by a health care professional. Genital warts were the most frequently cited STD.

Conclusion:
Our data suggests that members of this population are at high-risk for STD transmission and acquisition however NGI-MSM continues to be an elusive group of men. Larger samples are needed to collect more data on risk behaviors.

Implications:
This preliminary data can be used to develop future, and much needed, research on NGI-MSM and help guide STD prevention programs targeted at this population.