Rikki Donovan's Steampunk Challenge sounds like a lot of fun and this is one genre we definitely plan on reading more of.
Some of the titles we have decided to read:
The Windup Girl by Paolo Bacigalupi
Soulless by Gail Carriger
Changeless by Gail Carriger
Blameless by Gail Carriger
Clockwork Angel by Cassandra Clare
Cold Magic by Kate Elliot
Incarceron by Catherine Fisher
Sapphique by Catherine Fisher
The Boneshaker by Cherie Priest
Dreadnought by Cherie Priest
Leviathan by Scott Westerfield
The Hunchback Assignments by Arthur Slade
Corsets and Clockwork: 13 Steampunk Romances
and others TBA.