HOW TO FIND IT:
You will be looking between Beta Draconis and Pi Herculis.
1. Find the keystone of Hercules.
2. Zoom in on Pi at the corner of Hercules.
3. Notice the triangle, formed by Pi, Rho and 69.
4. Rho and 69 form the base of an asterism that looks likes a child's line drawing of a house.
5. Off to the side of that house, in the direction opposite the direction the triangle Rho, 69 and Pi point towards, there is a pair of stars.
6. These two stars point in a GENERAL direction of M93.
7. The pair will remain in most view finders when M93 is located.
WHAT TO LOOK FOR:
I believe M92 is brighter than its neighbor, M13, but its about half the size. It is fairly noticeable in the telescope as you sweep by. It's fairly small in binoculars.