Simon Mills. De Montfort University, Leicester. [Abstract] In this article I will discuss the philosophy of technology developed by Gilbert Simondon, predominantly in his 1958 book The Mode of Existence of Technical Objects, with a particular concentration on his concepts of associated milieu and concretization. The article provides an introduction to Simondon’s theory of technological genesis and indicates the problematic nature of the cultural for Simondon’s account. This is made apparent by contemporary developments in techno-social networks. However, I will also argue that this insufficiency is not insurmountable given Simondon’s overall ontology. Instead, it is a result of his own bias regarding technological development at the time when he was writing. In the latter part of the paper I will attempt to demonstrate how this insufficiency can be overcome and Simondon’s theory can be fruitfully applied to the theorization of contemporary social media and software. Additionally, I hope this paper…