The San Francisco Examiner is turning over part of its delivery to an outside company, American Circulations Innovations (ACI), according to a press release. The reason for the change wasn’t given, but Examiner circulation vp Michael Phelps has acknowledged that it has been difficult to get carriers to stop delivery to residents who no longer want the free paper. The Examiner has had this problem at its papers in San Francisco, Washington and Baltimore. In addition, ACI will provide the Examiner chain with a variety of technologies designed to keep track of deliveries.