"The content of these links are not controlled by Loudoun County Public Schools. While school staff review links when they are inserted, the content may change. If you find any linked home page content you consider inappropriate, please bring the matter to the attention of the webmaster. Remember that the outside source web page may link to other pages that have not been reviewed; explore at your own risk." 

To notify the webmaster of any inappropriate links:

LCPS Webmaster

As always, children should have adult supervision while accessing the Internet.  
Parents are the best filter for web content.

Virginia Dept. of Education Child Safety on the Internet
See FBI Internet Safety Guide for Parents