Scoren met Google : zoekmachinemarketing met AdWords / Fred van der MolenGet ready for cloud computing : a comprehensive guide to virtualization and cloud computing / Fred van der Molen (lead author) ; [text ed.: Colin Brace ... et al.]Scoren met Google Apps / Fred van der Molen ; [eindred.: Hans Postma ... et al.]Get ready for cloud computing : a comprehensive guide to virtualization and cloud computing / Fred van der Molen (lead author) ; [text ed.: Colin Brace ... et al.]