The specific aims of the study are: 1) to develop tailored feedback on HIV/STI prevention based on the ASE model, including condom attitudes, social influences, self-efficacy including communication / negotiation skills, partner and behavioral risk, correct condom use, and condom stages of change; 2) to enhance the delivery of the tailored messages using sensation-seeking targeting (SENTAR) and skill-building using interactive activities guided by Social Cognitive Theory (SCT) and skills training principles; 3) to tie the individual theoretical modules together and develop a computerized intervention program for HIV/STI prevention, which provides tailored risk reduction messages to participants based upon an assessment of participant characteristics; 4) to develop empirically sound cutpoints, specific to the target audience, to guide the message tailoring; and 5) in a wait-list control group design, to pilot test the intervention for acceptability and efficacy in increasing condom use with main and casual partners among at-risk heterosexually active African-Americans, relative to a "usual care" comparison condition.