A fundamental challenge of trustworthy computing is to develop a systematic and yet practical/usable approach on determining whether or not, and how much a piece of information (e.g., software program or information content) should be trusted. The focus of this talk is our trust management architecture, called DSL (Davis Social Links) based on social informatics, i.e., information about human social relationships and the interactions based on those relationships. Under the DSL architecture, we will discuss how to enhance the trustworthiness of distributed applications running on top of today’s Internet, and furthermore, how to re-design a brand new trustworthy Internet architecture based on social informatics. The speaker will perform some small demos during his talk.