After nine months of negotiations, the U.S. General Services Administration signed agreements with four video-sharing and social networking sites: Flickr, Vimeo, blip.tv and YouTube. GSA also is negotiating with the social networking sites Facebook and MySpace. Agencies can now engage with citizens through those popular media technologies. Under the Antideficiency Act, the government cannot make payments or commit to payments at some future time for goods or services if not appropriated by law, and that includes possible payments for damages or claims. Most service agreements also hold users subject to state laws, but federal agencies are required to follow federal regulations, not state laws.