I have been talking about non-sex sexuality issues way too much lately. (Academia made me do it.) Check out this awesome infographic from the KoldCast TV blog. A little heteronormative but edutaining nonetheless.
Edited to add: Scarleteen pointed out the sex myth reinforced in this infographic: clitoral vs. vaginal orgasms. An orgasm is an orgasm is an orgasm, which is controlled by the brain.
In the words of Heather Corinna “Sex is Mostly Between Your Ears, Not Your Legs“
The Sexademic 
the line ‘90% said their orgams problems are psychological in nature’ seriously needs further research. i would be shocked if (in a robust, non-self reported study) the number was anywhere close to 90%.
This is a highly stimulating topic. Thanks for posting it.