I’m definitely not an expert on disabilities students may have. So, I’ve been trying to find out more information. I’ve been looking for some good fact sheets about the most common disabilities; and, I scored the jackpot! These are from the National Dissemination Center for Children with Disabilities (which, sadly, last lost funding and has closed). Their free online resources will only be available until September, 2014. So, I downloaded all the disabilities fact sheets, because they’re really helpful and easy to read. Here they are:
Deafness and Hearing Loss Fact Sheet
Developmental Delay Fact Sheet
Emotional Disturbance Fact Sheet
Intellectual Disabilities Fact Sheet
Learning Disabilities Fact Sheet
Multiple Disabilities Fact Sheet
Other Health Impairments Fact Sheet
Speech and Language Impairments Fact Sheet
Squarehead Teachers 
Thank you so much! Very helpful to me as a teacher and useful to parents, as well!
You’re welcome! They were too useful not to have!