Ok, I was looking around the board and noticed: Holy crap 0_o There's no links for GLSEN or OUTPROUD, or any site relating to the two. And believe, me when you're planning on coming out, looking for support, ect, these sites really come in handy!
GLSEN : GLSEN is the Gay Lesbian & Straight Education Network. They are sponsors in ALOT of teen gay pride related events and can help you to start a GSA in your school and has news on alot of nation-wide events.
OutProud: Ok, OUTPROUD has to be the most useful site I've come across EVER. OUTPROUD has wonderful brocheres including ones for coming out to your parents, helping you to decide your sexuality, and even brochures tp give to your parents after you've come out! This site helped me ALOT.
TRANSPROUD: A divison of OUTPROUD. Basically the same thing except for transgendered teens.
YGA: Youth Gay America. This site was done for GLBT teens and it's really cool what these kids have done. Their movie
Jim In Bold has won a Best In Festival award, and three Best Documentary awards. They have also recently released their own magazine.
PFLAG: PFLAG has nation-wide meets monthly for teens and their parents. They're ALOT like GLSEN.
YOUTHSOURCE: This is just filled with personal stories, and posts lots of petitions and whatnot to keep you active.
LCNA: I have ALOT of gay Christian friends who have been descriminated against, if you are a gay/bi/lesbian/pansexual/asexual/transgendered Christian I HIGHLY suggest you go here.
PLANETOUT: News, community, but mostly news on the gay community in mostly the USA.
Bisexual Resource Center: Lots of links and info for you bi teens!
If I missed any main sites please post them up. Hope these help you all!