Order of Preachers: http://www.op.org/

Dominican Sisters International: http://www.dsiop.org/

Justice and Peace: http://www.jp.op.org/

Dominican Volunteers International: http://www.dviop.org/

Vatican: http://www.vatican.va/

UISG: http://www.uisg.org/

Vidimus Dominus:  http://vidimusdominum.info

Sedos: http://www.sedos.org/

Caritas International: http://www.caritas.org/

Liturgia delle Ore: http://www.maranatha.it

Centro studi cateriniani: http://www.centrostudicateriniani.it

Misna (Missionary International Service News Agency): http://www.misna.org/

Pax Christi International: http://www.paxchristi.net/international/