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This chapter discusses the challenges, state of the art, and future trends in context aware environments (infrastructure and services) for the Internet of Things, which is defined as a world-wide network of uniquely identified selforganized and intelligent things. Intelligence means primarily the capability of things to be aware of the context in which they operate (time, geographic location, geographic dimension, situation, etc.) and to inter-cooperate with other things in the environment. The Chapter is structured in three sections. The first section, which frames the issues discussed in the rest of the chapter, is a systematic presentation of the most relevant concepts and aspects related to the infrastructure and services for the Internet of Things. The second section presents relevant research works in the infrastructure, and up to date solutions and results regarding the infrastructure and services. The third section …