A fantastic online tool to anonymously notify previous and/or current sexual partners if you are diagnosed with an sexually transmitted infection, so they they can get treatment for themselves and notify their partners, too.

Supported by the American Social Health Association, iwannaknow.org is a search function that allows youth to easily search topics of interest to them. Primarily devoted to preventing the transmission of STIs, there are also topics on puberty, love and relationships, and reproductive information.

The UK’s leading provider of sexual and reproductive healthcare services.

A medical online manual that introduces and describes various sexually transmitted infections.

MTV gets on the sexual health train by providing youth with information about documentaries, HIV awareness groups, healthy sexual choices, and pop quizzes on sexual health knowledge. Each section is full of links, information, themes for each month, and places for youth to take action and speak up.

ASHA is recognized by the public, patients, providers, and policy makers for developing and delivering accurate, medically reliable information about STIs.

The Body is the comprehensive HIV resource with topics on HIV testing, prevention, myths, blood donation, and how HIV works and is treated. There are galleries, forums and chats for discussions of topics and to get questions answered.