PSA: National Sex Offender Public Registry

Found this via boingboing.
National Sex Offender Public Registry
This Web site is provided as a public service by the U.S. Department of Justice ("the Department"). Using this Web site, interested members of the public have access to and may search participating state Web site public information regarding the presence or location of offenders, who, in most cases, have been convicted of sexually-violent offenses against adults and children and certain sexual contact and other crimes against victims who are minors. The public can use this Web site to educate themselves about the possible presence of such offenders in their local communities.