I completely agree with HorseyVet. My school did not have a great support system for pre-vets. We were lumped in with the pre-meds, pre-dents, etc and labeled "pre-health."
However, the same group of pre-vets recognized the lack of good information and my third year about 6 of us re-organized (there had actually been one a few years back) a pre-vet "society." It was a great resource to collaborate information and organize trips to local clinics and wildlife rescues (sometimes it's easier to get a behind the scence tour if you call as the "president of the pre-vet society" then if you are Jane Doe pre-vet). Because I was a third year and everyone else involved in the organization was a second year, I was the first person to go through the application process. Now, I'm still trying to get in but another pre-vet this year was successful. I hope that our experiences that we have shared with the group will help others.
Returning to what HorseyVet said, because of the way the system is set up (each school having it's own requirements, etc) you will have to do a LOT of the leg work yourself. Start stalking the websites and talking to vets, vet students, other pre-vets find out what information is useful to you and figure out a plan that works for you.
On another note, it was unclear where in the process you are. If you are in high school looking for a undergraduate program you may be in a different boat. And then you have to examine what you want out of an undergrad school. If you are "vet school or bust" then you might want to look into programs like Colorado's VetStart (if you qualify) or other undergrad schools that have a vet school attached. This way you will have resources and guidance available to you. On the other hand, if you are like me, you want a good broad undergraduate education go you whatever school you like and know that you are going to be one of a very small crowd.