Attached Link: http://www.icra.org/_en/community/affiliates/

accually... with the ICRA (Internet Content Rating Assocication) a Rating system could be put into place on a section of images if they were thought to consider nudity, mid sexual acts that most parents could block the page via a simple entry into there little site protection programs. It would probably be alot better if more sites used the ICRA for site content, because it can be page specific rating or whole site specific. More information about the ICRA can be found at the attached link.