GreatSchools.net
Information on elementary, middle and high schools in the Phoenix area. This is a very useful website including a tool that allows you to compare schools within a certain area.

Arizona Department of Education
Government owned website that lists the top performing schools in Arizona. Contains an enormous amount of information regarding school districts in the Scottsdale area.

About.com
This is a good resource for finding elementary, middle, and high schools in the Phoenix area. It also helps you find 2 to 4 year colleges, private and vocational schools.