Compilers of corpora that document regional and social languages and varieties of languages have different needs and goals, and yet we also face common problems, and we should have an interest in collaboration. In this paper, we set forth our intention to begin such a collaboration. We begin by exploring the parameters of our various corpora. We then explore issues of access and analysis, whether public or private, whether for general audiences or for specialists. Finally, we assert that it is indeed possible, practical, and desirable for us to apply common methods to our common problems, and we propose specific recommendations. W e are a group of six researchers who have been part of corpus development for some time. We wish in this essay to do something different from our independent projects: we want to talk about working together. We are all interested in making corpora that document regional and social languages and varieties of languages. While we must necessarily have different needs and goals, we also face common problems, and thus we have an interest in collaboration, for the use of computer tools ourselves and for greater ease of use by our audiences. In this report, we set forth our intention to begin such collaboration. We begin by exploring the parameters of our various corpora, whether historical or newly created; whether of written texts and/or of speech; and whether recorded in writing, audio, or video. We then explore the parameters of access and analysis, whether they be public or private,