2Felson M, Spaeth J L. Community Structureand Collaborative Consumption : A RoutineActivity Approach [J]. American BehavioralScientist,1978,21(4) :614-624.
3Mahmood K,Richardson Jr J. V. Adoption ofWeb 2. 0 in US Academic Libraries : A Surveyof ARL Library Websites [J]. Program : elec-tronic library and information systems,2011,45(4):365-375.