Some more resources for reflecting on the O Antiphons during Advent:
- Reflections on the O Antiphons from http://www.liturgy.co.nz/
- Day by Day Reflections for the Octave before Christmas from http://www.wellsprings.org.uk/
- The Great O Antiphons from Vultus Christi with further reflections here
- English Dominicans have a series of reflections here.
- O Antiphons: A Theological Translation from Everyday Liturgy: Thoughts for the Other Six Days