Sing Out! is the primary publication of the tax exempt, not-for-profit, educational corporation of the same name. According to the organization's web site, "Sing Out!'s mission is to preserve and support the cultural diversity and heritage of all traditional and contemporary folk musics, and to encourage making folk music a part of our everyday lives." Irwin Silber was an important co-founder and long-time editor from 1951 to 1967. Its current editor and executive director, since 1983, is Mark D. Moss. The editors apply a very broad definition of folk music including material from contemporary singer-songwriters, Americana, roots, blues, bluegrass, and world music.
One defining feature of the magazine is the inclusion of 20 or more songs with lyrics and music within the pages of each issue--supplemented since 2001 with an illustrative CD. The magazine also contains in-depth articles profiling musicians and musical traditions, "teach-ins," reviews of recordings and print publications, a comprehensive festival and camp listing, and columns covering topics such as songwriting, storytelling, children's music, and the folk process.
The corporate headquarters of Sing Out! is located in downtown Bethlehem, Pennsylvania which is also home to the Sing Out! Resource Center. The magazine is distributed internationally by mail subscriptions and can be found in many bookstores and libraries throughout North America.