I second the motion. The more categories we have dealing with significant life applications, the more participation we'll have.
I post on crosswalk.com's forum, and they have the following categories (among many others) which would be of interest to this board:
Faith
FaithWalk - Christians Only
General Faith
Ministry Leaders
Prayer and Praise Reports
Family
Family Life
Finances
Marriage
Parenting
Home Schooling
Moms
Parenting
Public and Private School Parents
Theology
Christian Doctrine
End Times
God
Moral Issues
Salvation Issues
Science & Christianity
The Bible
The Church
The more the better within limits. Some of their topics like "fun" and "hobbies" are not suitable IMHO.