Master of form Lewis Turco writes regularly on odd and invented forms & the most recent column arose from a question I asked about Annabelle Moseley's mirror sonnets. (Annabelle's debut volume is
The Clock of the Long Now, on the David Roberts imprint.)
I realized this could be a great resource for Eratosphere poets as the forms and columns add up over time. Here's the link:
http://lewisturco.typepad.com/odd_and_invented_forms/