If you're interested in steampunk – whether it's learning more about what it is or reading up on some of the titles for kids and teens that are available – then I highly recommend Heather M. Campbell's article Steampunk: Full Steam Ahead available in this month's School Library Journal.
As Campbell notes, the term steampunk is much more recent a creation than the sort of fiction it describes – fiction set in an alternate reality where the industrial revolution centered on steam and gas, rather than on electricity and oil, so that things like steam-powered engines and gas-filled zeppelins are the norm. This sort of fiction dates back to early speculative fiction writers, including H.G. Wells and Jules Verne, and classic hallmarks include a sort of dark, Victorian aesthetic. Some of today's writers adhere to all those markers, including a setting in a Victorian or Edwardian England, but others tend to range farther afield both geographically and topically.
Librarians, teachers, and those of you wishing to educate yourselves about steampunk books will be interested in the long bibliography that Campbell provides, which includes picture books and graphic novels as well as novels for the elementary, middle-school and high-school sets. Additionally, Campbell provides online resources to allow people to explore steampunk culture, which revolves around some pretty awesome objects, airships to homemade steampunk devices to fashion.
You can find the round-up of other Steampunk/Alternative History links at Chasing Ray. If you are inclined to blog about something to do with alternate history or steampunk between now and Friday, please let Colleen know over at Chasing Ray so she can link you up with the larger conversation!