4 Freedoms Relationship Tantra
Information and workshops on Tantra
http://www.tantra-sex.com/

Body Electric
Courses in massage, retreats for couples; most programs are segregated by sex
http://www.bodyelectric.org

CCSF HIV/STD Education Program
Offers certification and courses in HIV/STD prevention education
(415) 452-5202
http://www.ccsf.edu/NEW/en/educational-programs/school-and-departments/school-of-health-and-physical-education/health-education-and-community-health-studies0/hiv-sti-prevention.html

CSUN Center for Sex and Gender Research
Lists sexology programs in US colleges and universities
http://www.csun.edu/~sr2022/

Center for Research & Education on Gender & Sexuality (CREGS)
Practical and educational resources, publications, training
(415) 817-4525
http://cregs.sfsu.edu/http://www.csun.edu/~sr2022/

Center for Sex and Culture
Hosts classes and events; has library
1349 Mission St., SF
(415) 902-2071
http://www.sexandculture.org

EduKink
Offers BDSM/leather/fetish/kinky-oriented sexuality and relationship classes, parties, munches, and special events
http://edukink.org

Good Vibrations
603 Valencia St., SF
(415) 522-5460
(415) 345-0400 (1620 Polk St. SF)
(510) 841-8987 (2504 San Pablo Ave., Berkeley)
(800) 289-8423 (telephone orders)
http://www.goodvibes.com

Human Awareness Institute
Workshops on relationships and sexuality
(650) 571-5524
http://www.hai.org

Institute for the Advanced Study of Human Sexuality
Graduate school in sexology
1523 Franklin St., SF
(415) 928-1133
http://www.iashs.edu

Loving More
National Support Organization/Magazine for Those Involved in Multi-Partner Loving Relationships
http://www.lovemore.com/

Sacred Space Institute
Workshops and Conferences on Polyamory and Tantra
(415) 507-1739
http://www.lovewithoutlimits.com/

San Francisco Citadel
Venue for classes and discussion groups
181 Eddy Street
http://www.sfcitadel.org

Society of Janus
BDSM education, support, social group, and classes (also maintains a community event calendar on their website)
(415) 292-3222
http://www.soj.org

SFSU Human Sexuality Studies Department
Undergraduate minor and MA program
http://hmsx.sfsu.edu