Teachnology - Teacher Resource > Special Education
This is the special education section of the web portal, TeAch-nology.com, which "offers a wide variety of free resources intended to bring educators into the world of teaching with technology."

Educational Resources Reference Desk
This site provides a search interface to the ERIC database

The Discovery School Lesson Plan Library
Find hundreds of original lesson plans, all written by teachers for teachers. You can browse by subject, grade level, or both

TeachersFirst.Com
A content matrix of lesson plans and additional resources by subject and grade level.

Lesson Plans.com
This site certainly has an extraordinary number of lesson plans to choose from. That's its strength. The primary weakness is that because it is a commercial site, it has too much commercial junk in the way. Still, it's worth taking a look.

LessonPlanz.com
Another very nicely arranged index of lesson plans.

TeacherVision.com
From the learning network, TeacherVision offers a very extensive searchable data base of lessons.