This paper serves as an initial announcement of the avail- ability of a corpus of articulatory data called mngu0. This cor- pus will ultimately consist of a collection of multiple sources of articulatory data acquired from a single speaker: electro- magnetic articulography (EMA), audio, video, volumetric MRI scans, and 3D scans of dental impressions. This data will be provided free for research use. In this first stage of the release, we are making available one subset of EMA data, consisting of more than 1,300 phonetically diverse utterances recorded with a Carstens AG500 electromagnetic articulograph. Distribution of mngu0 will be managed by a dedicated “forum-style” web site. This paper both outlines the general goals motivating the distribution of the data and the creation of the mngu0 web fo- rum, and also provides a description of the EMA data contained in this initial release.