This research focuses on attitudes toward homosexuals and homosexuality among 692 heterosexual students at six liberal arts colleges. Attitudes, assessed in a variety of ways, are examined in relation to students' Greek affiliation, sex role attitudes, religion and religiosity, and contact with and knowledge of gays, lesbians, and bisexuals. Results suggest that attributes predicting acceptance of gay, lesbian, and bisexual persons are female sex, liberal sex-role attitudes, lower religiosity as measured both by beliefs and by attendance, membership in more liberal Protestant denominations, attendance at colleges that do not have Greek letter social organizations, and having positive contacts with gay, lesbian, and/or bisexual persons.