1. An individually targeted content delivery method comprising the steps of: collecting data associated with at least one set top box; deriving at least one user model for each of said at least one set top boxes; storing said derived at least one user model and an identifier corresponding to the set top box from which said at least one user model is derived in a storage means for later retrieval; selecting content and associated content attributes to be delivered to at least one set top box; transmitting said content to said set top box; and causing said content to be presented by said at least one set top box when a correlation between said content attributes and said user model associated with said set top box exists.