I know that there are already A TON of questions, threads, and videos about rolls.  And trust me I'VE SEARCHED for the answer to my question for a little over two weeks to avoid the frustration people get when reading these threads, but I just can't find the solution to my problem.  When I roll I have a tendency to hit the top of my shoulder on the ground.  I hit it right where the two bones connect and it starting to bruise.  I'm not sure how to avoid this.  I know the back of my shoulder blade should be touching the ground instead of my shoulder for a smooth  roll, but I have no idea how to correct this.  I even tried switching the way I roll, to the scooping method, and that doesn't help either.

Any help would be greatly appreciated.

Are you rolling on concrete?  if so STOP!  you have no business rolling on a hard surface if your roll isn't pretty much perfect.  I know mine is still a work in progress, so I stick to rolling on softer surfaces like grass.  If you're doing jumps that require you to roll and it's hurting, then you need to stop that as well.  Get your roll under control first before you use it in a real situation.

As far as actually improving your roll, find a softer surface.  Gyms usually have soft floors, carpet, grass, etc.  If you want help on your technique, I recommend you look up Ozzi's tutorial from UrbanCurrent on youtube.  There's also a nice video on youtube called "Roll analysis with David Belle" that has a bunch of slow motion rolls captured from existing David Belle show reels.  Really observe what he is doing with all of his body, his arms, his head, his legs and feet.  When you're ready to go try it out, start crouched, and go REEEEEEEEEEEALLY SLOW.  feel the motion, the flow of the roll.  Feet how your body is positioned, what it's doing during the roll.  Once you feel that motion, put a little bit more force and speed into it, still remaining crouched.  Progress slowly but surely, making sure to listen to your body and feel for pain.  once you can do a full speed roll from a crouched position, stand up and fall forward into the roll.  Again, progress slowly, but surely.  Once your roll feels smooth as silk from a standing position, start dropping off small ledges (and that means dropping, not leaping), maybe a foot high, continuing to feel your body for inefficiency.  once your roll feels geart from a varying degree of heights on a soft surface, restart the entire progression on a harder surface, hard clay, maybe even concrete.  Just remember to take it slow, don't rush yourself, and listen to your body.  

well of all of the tools a tracuer has in their arsenal, the roll is one of the most important, right up their with basic landing.  you can always improve, practice and refine your roll.  you should be able to roll in all directions, forward, backward, side to side, as well as diving rolls.  your might want to start the diving roll progression on an actual gym mat or maybe a matress first, just in case.

I had that problem when I first learned to roll (but luckily I was on mats)

I found a way to fix it is to not just fall into the roll like what seems natural, but instead dive a little into the roll, and lean forwards, tucking under while you push your feet out and up (not high up, but when you go out you naturally go up a bit, which is usually enough room to tuck under)

it really comes down to tucking your shoulder in more so you land on the back of it more.