Best Way to Approach Schools about Technology?

I have a new website that I think schools would really benefit from (http://Enterthegroup.com). However I'm finding it hard to get through to people. What's the best way to get a site evaluated and used in the classroom?

Emailing Principals, Superintendents & IT people isn't getting me any responses and cold calling is only slightly better but it can also backfire too. Does anyone have any thoughts?