Pathweb

The Pathweb, according to Oswin Oswald, is the central intelligence communication array of the Dalek race. Whilst not a gestalt consciousness, or hive mind in and of itself, it linked all Daleks that were a part of it, and allowed for memories and information to be shared amongst the network, and for information to be removed

History
The Pathweb was first officially named by Oswin Oswald (Asylum of the Daleks), but has been alluded to throughout much of the Doctor Who continuity. In Asylum of the Daleks, Oswin uses her link to the Pathweb to delete the Doctor from the memory of all Daleks, thus causing them to forget who he is. Initially she did this to save him from several insane Daleks who'd survived the Doctor in the past, but in the end it served the overall function of removing a motivator for Dalek advancement. Once Oswin was forced to realise that she was a Dalek as well, she wondered why the Daleks hated the Doctor so much, and having memories of the Dalek race past and present, stated that the Daleks had become powerful through their fear of the Doctor, that his being their "Predator" had forced them to adapt and advance merely to survive him.