Illinoisans are being cautioned to be wary of Internet scams based on the Boston marathon bombings. The Rock County Sheriff's Department says 125 domain names associated with the bombings were registered in the hours after the incident. Police warn people to be wary of clicking links, visiting websites of making donations online to organizations claiming to be associated with the Boston bombing. Doing so could unleash a computer virus, and donations could end up going to a charity that doesn't exist.