The developers at Hareidi.org have put together a package which address some of these needs. It is based on the open source [[http://www.privoxy.org/ Privoxy internet filter]], which is free to download and available for Windows, Macintosh, Linux and other operating systems. ''Privoxy'' software was originally designed to remove unwanted advertisements, and we use it here to remove unwanted graphics and warn (or prevent) users from visiting "untrusted" websites. ''Hareidi.org's Kosher Internet'' add-on software was designed to be used by hareidim who are required and permitted to use the internet but are bothered by the amount of unwanted graphics they must encounter.