This chapter provides an overview of the methodologies and technologies that support Linked Data designing and publishing. More specifically, this chapter starts with a presentation of the rationale and a discussion about how data can be opened up (i.e. published under an open license). Basic principles are first introduced regarding the cases in which content can be opened up and also, the most common approaches are presented in accomplishing this. Next, we discuss about how data can be modeled, authored, serialized and stored. In this chapter we also provide an overview of the most common technical solutions and widely used software tools that can serve this purpose. Overall, the chapter aims to provide an analysis of the sub-problems into which the Linked Open Data publishing task is to be broken down, namely opening, modeling, linking, processing, and visualizing content, followed by a presentation of the most representative software solutions.