I know of vegsource, but what are some others?
Thanks!:)

I have no idea, so I'm subbing. Of course, there's sonlight.com, but I don't know if you're looking for Chrisitian curriculum. There's yahoo groups you can join that sell Waldorf curriculum:
Waldorf_at_Home
waldorfcurriculum-supp...
waldorfhomeschoolers
waldorfstuff
Waldorfcurriculum-supplies isn't accepting new members right now. I'd say waldorfstuff is the better choice; in the other two is looked down if you ask for say, Enki, or Christerophus curriculum.

The well trained mind has a board:

http://welltrainedmind.com/activeboards.php

Also A Home For Homeschoolers (you have to create a log-in to get into the forums for this one):

http://ahomeforhomeschoolers.com/