Citizens may enter any address of interest to them and see a map and listing of offenders within their preferred radius of that address. Then, they may confidentially register the address to be continuously monitored by the agency, which will send to them an email alerting them if an offender or predator should move near their registered address. Usually, citizens will register their homes, work addresses, parks, playgrounds, bus stops or other addresses of interest to them. Citizens may also confidentially register to be notified if a specific offender, who they wish to track, moves from their present address. Citizens may register as many addresses as they like, at no cost.