There are so many exercises for the shoulder, but here is one you can throw out...
The bilateral shoulder external rotation with dumbbells. It's really targeting more of your biceps than anything else (yes there is some rotator cuff working here). In fact, this motion is very similar to an orthopedic test (Yergason's Test) to look for a labral tear. Just do the same movement with an elastic band or tube, which targets the rotator cuff, the whole purpose of this exercise. Check out Mitch's video below:
I love all the video series and blog by Mitch Starkman, a physical therapist in Canada. He has tons of great posts for patients on a variety of topics, including preventing running injuries, fixing injuries from your desk, as well as providing fun 'fix-it' videos to each body part and joint. Check him out!
The therapists at SRVPT have a variety of backgrounds and are interested in sharing our knowledge with you! Check out their bios for more specific information.