American Sexual Health Association Find your topic in the list of headings on the left side of the page.
Sex, etc. STD Resources Created specifically for teens, this site has the answers to all your questions.
Centers for Disease Control This site has fact sheets, statistics, images and resources for treatment, care and prevention.
Teen Health Learn the facts about sexual health with articles about puberty, menstruation, infections, and just about everything else you wanted to know, for guys and girls.

Research databases
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Correctly citing sources is an important aspect of avoiding plagiarism. These tools can help! For more help, see Avoiding Plagiarism and Documenting Sources.
Easybib makes it easy for you to cites sources. If you are using Google Chrome for research and/or Google Docs to write your paper, try downloading the Easybib extension for Chrome or the the Google Docs add-on to streamline the process even more.
BibMe The fully automatic bibliography maker that auto-fills. It’s the easiest way to generate citations to build a works cited page. And it’s free.