A selection of guides that wpa have found useful over the last 10 years:-
OGC Publications: Common Causes of Project Failure
OGC Publications: Driving Innovation Through Public Procurement
OGC Publications: The Value That Small Suppliers Can Offer
OGC Publications: The Delivery Pocketbook
OGC Publications: Energy Efficiency in Procurement
NBS Publications: BIM Research Report; March 2011
BIM Working Group Strategy Paper; March 2011
National BIM Report February 2012