W3C is inviting position papers for a workshop on data controls and linked data vocabularies to be held in Vienna, Austria on 7-8 March 2018. This is motivated by the challenges for addressing privacy across an ecosystem of services involving personal data. This is especially relevant to the growth of services based upon the Internet of Things with a rapidly increasing number of sensors that can track our behavior wherever we are. Moreover, legislators are seeking to give consumers greater control over their personal data, e.g. the right to be forgotten. Workshop participants will discuss opportunities for using Linked Data as part of a technical framework for conforming to privacy legislation, e.g. the European Unions GDPR, as personal data flows across an ecosystem of services.