The deadline to submit your magi and spells for the Ars Magica Open Call is March 31st. That means that, if you are thinking of submitting, now would be a good time to send a Release Form. And if you aren't thinking of submitting, why not?
The details are available at http://www.atlas-games.com/pdf_storage/ArM5SpellsOpenCall.rtf
I'm looking forward to seeing everyone's submissions.