Special education or special needs education is the education of students with special needs in a way that addresses the students’ individual differences and needs.
Common special needs include challenges with learning, communication challenges, emotional and behavioral disorders, physical disabilities, and developmental disorders.
Below links give more details and resource,
For Autism : http://www.symbolworld.com/
For speech Therapy : http://mommyspeechtherapy.com/
Special education : http://www.iser.com/
Special education law : http://specialedlaw.blogs.com/
More resource : http://michellespecialeducation.blogspot.com/
Please let me know if you know any best blogs for special education.