From The New York Times:

CAMDENTON, Mo. — Students using the computers at Camdenton High School here in central Missouri have been able to access the Web sites for Exodus International, as well as People Can Change, antigay organizations that counsel men and women on how to become heterosexual.

Read more: http://www.nytimes.com/2012/03/26/education/missouri-school-district-questioned-over-anti-gay-web-filter.html?_r=1&ref=education