In this chapter, we cover some topics that contribute to a broader understanding of the role of IT outsourcing. We start by presenting value configurations consisting of primary and secondary activities in order to understand the role of IS/IT in different value configurations such as value chains, value shops, and value networks. Next, we look at electronic business infrastructure, where the extent of IT outsourcing can be determined by choosing from a list of 70 infrastructure services. E-business has a double role here, as an outsourced IT function more and more will be handled electronically. This means that the transactions between vendor and client after outsourcing will be conducted as electronic business. Third, we present a vendor value proposition that explains why a vendor may create value for the client because of its complementary competencies. Then, we look at IT function organization, outsourcing performance, and successful relationships. We conclude this chapter by discussing opportunities and threats in IT outsourcing.