Pathweb

The Pathweb, according to Oswin Oswald, was 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
In the Dalek Asylum, when several Dalek inmates attacked the Eleventh Doctor upon recognising him, Oswin Oswald hacked into the Pathweb and deleted all the information connected with the Doctor; wiping him from the memories of the Dalek race. (DW: Asylum of the Daleks)