I've been part of some kind of on-line group for women in ministry for over 10 years now. I can tell you that I have experienced endless support, encouragement, counsel, correction and love by being a part of a large group of women who walk in the same kind of shoes, live in the same kind of fish bowl and love the ministry that God has given them, the same way I do.
A friend of mine started a yahoo group for women who are in ministry (women's, children, music, missionaries...) or who are married to someone in ministry. It's become a great source for idea exchanges, prayer support and just overall ministry encouragement. We share experiences and heartaches and women share wisdom and bear each others burdens.
If you're interested in learning more about WHIM (Women's Hearts in Ministry) check it out at http://groups.yahoo.com/group/Womens_Hearts_In_Ministry/summary You'll need to join the group and the moderator will email you confirmation information.
Hope to see you there!