I was reminded of this today by an MTV poll, so I thought I'd post. Poignant release last month by Rise Against focussing on homophobic bullying and suicides. It really is worth watching the video.
You can contribute to the Trevor Project here. As the Trevor Project is mostly focussed in the United States (though the videos come in from all over the world and many are well worth watching - gay or straight), I usually put my support, living in the UK, to Stonewall which does some bloody good work over here.
And, er, yes, the Doctor Who nerd does like punk... mostly classic 80s stuff though.