Unfortunately, I don't think there is a website to check on the bus stop numbers for the resorts. I actually had the experience of having my Magic Kingdom bus stop number changed in the middle of my trip. The first time we went it was the first stop and then two days later when we went back it was 3 stops down from the front.
I believe that they change on a fairly regular basis. Sorry I couldn't be more help on this.
That's correct. The bus stop numbers change on a regular basis, so the only ways to know for certain where your pick up location will be are to pay attention when your driver makes the announcement as you arrive at the park or to check the posted signs.
There are signs stating which where each resort bus makes its stop. Also, the bus driver will make an announcement, when the bus reaches its stop.
If you are still not sure, there is a booth that you can get any answers to your questions.
And, you will find that different resort levels have different bus stop areas at the parks....it's not always the deluxes that are at the front of the line. Usually they are, but there are times when they may be after the moderates, or you find a value resort has a closer bus stop then a deluxe.