Michael DelNegro has been the principal database administrator at AOL for 6 years and currently administers MongoDB installations including applications for MapQuest and Patch. These applications store user profile and activity information with the MapQuest app hosting 300 million users on 26 servers and the Patch app storing around 100GB of data. He outlines his experiences administering MongoDB at AOL including deployment details, best practices, tools, and upcoming plans to upgrade installations and applications.