http://teacher.scholastic.com/tools/class_setup/

Class set up tool to create layouts for classrooms

http://www.edutopia.org/blog/8-tips-and-tricks-redesign-your-classroom
Edutopia: 8 Tips and Tricks for Redesigning Your Classroom

http://www.thomascmurray.com/tag/class-design/
Beyond Ditching the Desks, 9 Creative Ways to Avoid The Cemetery Effect for All Classrooms