This year, banned websites awareness day is September 26th. This is a day during banned books week that the American Association of School Librarians (AASL) has designated as a day to promote awareness of overly restrictive filtering that can affect student learning.
Over filtering of the internet also does not allow students to learn how to tell if a source is reliable or not, something they will need to know once they go home or when they grow up. Yes, some sites should be banned at schools because of X-rated content or otherwise, but students need to learn how the internet can best suit them and that is hard to do when valid educational sites are inaccessible.
For more information on this subject, check out these resources:
American Association of School Librarians (AASL). (n.d.). Retrieved from http://www.ala.org/aasl/
Anderson, A. J. (1974). Problems in intellectual freedom and censorship. Bowker.
Call number: 323.44 An23p
Haerens, M., & Zott, L. M. (2014). Internet censorship. Greenhaven Press, A part of Gale, Cengage Learning.
Call number: 025.042 In886 2014
Heins, M. (2008). Not in front of the children: Indecency, censorship, and the innocence of youth. Rutgers University Press.