10. 23 And Me
From the site:
"With a simple saliva sample we'll help you gain insight into your traits, from baldness to muscle performance. Discover risk factors for 94 diseases. Know your predicted response to drugs, from blood thinners to coffee. And uncover your ancestral origins. "

Founded by Sergei Brim's wife, 23 and me raises some crazy questions and advances what we learn about genetics. Armed with this knowledge we can find the cures for the world's ailments.