Saint Ninian Sites - Locations throughout Scotland traditionally associated with Ninan or his disciples. - http://www.whithorn.com/saint-ninian.htm
Firth's Celtic Scotland: St Ninian - Biography of the first Apostle of the Picts with details of the extent of his ministry and legacy. - http://www.cushnieent.force9.co.uk/CelticEra/Saints/saints_ninian.htm
Ninian, St - Biographical information from the 1911 Encyclopædia Britannica. - http://www.1911encyclopedia.org/St_Ninian
Catholic Online: St. Ninian - Biographical sketch relates part of what St. Aelred says of Ninian, but not the much earlier information from the Venerable Bede. - http://www.catholic.org/saints/saint.php?saint_id=445
Catholic Encyclopedia: St. Ninian - Also known as Ninias, Ninus, Dinan, Ringan, or Ringen. Bishop and confessor, died about 432. British by birth, St. Ninian evangelized the southern Picts in Scotland. - http://www.newadvent.org/cathen/11084a.htm