- The System of Yeats's "A Vision"
- An attempt to offer a clear and helpful guide to the ideas of A Vision. Explores this esoteric system created by George and W. B. Yeats around the spiral gyre and the phases of the moon.
- Yeats Society of New York
- Calendar of Yeats Society events and activities in NYC, and links to Yeats resources on the net
- Yeats Society Sligo
- Site devoted to the perpetuation of the artistic heritage of the Yeats family and to the celebration of the life and achievements of William Butler Yeats and his poetry.