It's been far too long since I've haunted these boards -- my sincerest apologies! My interest in writing Steampunk has not waned, but it has been too frequently delayed by other projects.
This week, another board I frequent --
Romance Divas -- has hosted a free workshop on Steampunk Romance, and indeed, All Things Steampunk, and it has rekindled my imagination.
The forum is set up very much like Brass Goggles, so navigation should not prove difficult. Registration is also free. I offer this suggestion not as an advertisement to gain more members (you do have to register to take part in the discussion, and, like BG, registration is free) but merely to inform you of another venue for learning and discussion.

The authors taking part in the discussion either have Steampunk books currently on the shelf or coming shortly:
Zoe Archer
Meljean Brook
Gail Carriger
Sarah A Hoyt
Katie McAllister
Dru Pagliassotti
The workshop ends today -- would that I had remembered to come here earlier! -- but the content will remain in the archives forever should you wish to peruse it later at your leisure.