Sorry if I was confusing. We should stay away from the snakes with wings, the stethoscope, the cross. Those visual elements are considered trite or cliche here -- lots of people overuse them, they make a medical company's logo very generic and forgettable. Also, the S with the line from the H look like a $, which is the wrong message for a medical audience -- they like to be about healing people, not about money.
But I really liked that first idea, the "u" in Source kind of looked like a mouse and it kind of looked like a EKG. Unfortunately, it also kind of looked like a stethoscope. You're right in the mix with the top 3. Directionally, we like the idea of making one of the letters look like something that communicates the idea of our site. The magnifying glass in submission
#45 we like better than the stethoscope, but that's not quite right either. If you have another idea for something else, we'd love to see it.