A society lobbying for a re-examination of the reform of the liturgy since Vatican II to make it more in line with what was intended by the Council Fathers.

Promotes the use of spoken and sung Latin in the liturgy. Based in the UK, invites membership from Catholics around the world. FAQ, publications, excerpts from newsletters.

Promotes the use of Latin in the liturgical life of the contemporary Church.

Membership organization in the United States, dedicated to liturgical music. Several mailing lists, sponsors workshops for cantors and instrumentalists, holds conferences.

International organization promoting the Latin Tridentine Mass, Gregorian chant, sacred polyphony: articles, links, contact information.

Volunteer organization and web site for Roman Catholic liturgical reform. Frames-dependent, and too big (too tall) for most monitors.