When I found out we were facing an inevitable miscarriage, I was desperate for information. I'm a control freak and I feel like I can handle most anything as long as I know what to expect. Well, miscarriage isn't like that, but that's another story. I did find some message boards that were active - my main criteria - because if you are facing a miscarriage anyday now, you can't wait til next month for an answer to your question. Here are some I'd recommend:
Facts About Miscarriage Forums This is one of the most active out there, with many posts every day.
Silent Grief Forums These are detailed, supportive forums that are pretty active. I liked that it had separate forums for all sorts of situations.
There are some others I'm thinking about adding that I got good information from, but some aren't very active (and it can hurt when you don't get a response to your posting and you are in no mood for more hurt) and some are just kind of brutal emotionally. As believers, Hal and I remember that we do not grieve as those who have no hope, and sometimes witnessing the full-blown grief of those who are indeed without hope is very hard to bear. The above boards have both kinds certainly, but the tone is okay in most cases.