The Federal DOE’s IDEA 2004 news page. A great place to start to the details of changes in IDEA since the 1997 version.
National Dissemination Center for Children with Disabilities. Text and PDF versions of the legislation, comments and eventually training materials on the changes.
Council of Parent Attorneys and Advocates. Lots of legal stuff.
The Wrights Law page related to Idea 2004. Lots of information and comments and also includes this document describing the substantive changes to the five key statutes of IDEA 2004 by section and subsection. Text added to IDEA 2004 is in italics. Text deleted from IDEA 97 has been struck through.
National Center for Learning Disabilities Parent Guide to IDEA.Being informed will help you support your child’s learning needs and advocate for his or her success. Visit the guide for information on requesting an evaluation, student discipline, and more.
The Consortium of Citizens with Disabilities has a document outlining the changes brought by IDEA 2004. This one contains some history in addition to the changes. Download it here: http://bsnpta.org/user/IdeaUserGuide.pdf