Spiritual director Teresa Blythe has a couple of interesting articles about discernment on Patheos. One is a step-by-step guide to discernment based on Ignatian principles. The other is a fascinating look at how the Quakers do group discernment.
We also have much material on discernment on IgnatianSpirituality.com. Start here.
Thanks, Jim for the shout out. I am enjoying your website very much as I am a BIG fan of Ignatius!