The Archive is divided into seven groups, or "callings":
Scribes record data and are in charge of keeping track of information and keeping it up to date.
Collectors are field agents. Their job is to observe and collect data. On occasion, their work also entails recruiting new members.
Analysts are in charge of analyzing the data obtained by collectors and running experiments.
Keepers are in charge of security. They ensure the Archive's bases remain hidden and keep all Archive files secure.
Inquisitors act as the Archive's Internal Affairs. They investigate corruption within the Archive and are in charge of maintaining the Sphere.
Brokers keep the Archive running. They sell information to wealthy clients, providing the funds needed for the Archive to run.
Martyrs are the soldiers of the Archive. They are rarely deployed, but their job entails hunting down rogue agents and eliminating external threats to the Archive.
NOTE: So next update is CW002, and after that is the post about the Gifted. I've also finished adding the "Further Reading" links to the PRE posts. --SΣ