What would collection developers do in the absence of local collection
s? Collection developers partition the universe of documents, privileg
ing selected documents for acquisition and retention. Their selections
of documents, based on expected demand and perceived value, direct th
e actions of technical services staff. A comparable selective privileg
ing of documents, based on demand and value, and a similar direction o
f a reoriented technical services activity appears needed with network
ed electronic resources. Collection developers will be needed for valu
e-based privileging more than for demand-based decisions.