A now-defunct website/circle, consisting of several artists, and managed by Wagahai.
Most of images under this tag on danbooru are actually Bakudan Komachi(爆弾小町)'s works. (S)he was one of the group members.
Site/group name: 情報統制府 (Jouhou Tousei Fu, lit. Information control Office)
Main manager: 我輩 (Wagahai)