Track Mashup Submit Mashup Mashup: Map Sex Offenders Comments Mapping, Crime National sex offender registry. Summary Comments (2) Followers (6) Summary Comments Followers Comments (2) Comment * Leave this field blank Post Comment scornn (not verified) 7:40 PM Jul. 15 2008 reply how do they get the sex offender data from all of the states? I would like to have our(school i work at) check our visitors against this data but can not find it all in one place would like to make it a mashup that other schools could use N (not verified) 8:43 AM Sep. 11 2008 reply Not working. Only returns server errors all the time.