Too many choices. Le sigh.
Historical Fiction Challenge, hosted by the group of readers at Historical Tapestry - I (unofficially) completed this challenge last year at the lowest level. I might attempt it again, maybe at 5 books...?
Chunkster Challenge, hosted by Wendy and (new this year) Vassily with it's own blog - Though the current challenge isn't yet done (I'm half-way there!), a new one is promised (not yet posted) starting in February 2012.
An Illustrated Year: 2012 Picture Book Challenge, hosted by Jennifer at An Abundance of Books - First off: I. Love. The. Button. Seriously cute. However, 24 pb's max?! Really? I'll probably hold off on this challenge and wait to see if another one comes along...
Titanic 100th Anniversary Reading Challenge, hosted by Nicola at Back to Books - In honour of the 100th anniversary of the sinking of the Titanic (and as Nicolas states, there will no doubt be a plethora of books released this year for that very reason), this challenge aims to get us educated on the particulars in all types of media (fiction, non-fiction, children's movies, documentaries, etc.). Participants can choose between 6 or 12 combo's.
Venice in February, hosted by Dolce Bellezza and Ally (of Snow Feathers) with a dedicated blog - Join the hosts in February 2012 to read all about Venice.
Year of the Fantasy Classic, hosted by Kenda of Lurv a la Mode - An informal reading challenge with no limits or lists, just classic fantasy books.
Immigrant Stories Challenge, hosted by BooksNYC at Books in the City - The challenge is to read stories about immigrants - fiction, non-fiction, etc. The challenge caught my eye and the non-fiction made it even more interesting...I can definitely see myself participating in this challenge! ;)
There are 2 specifically Australian challenges to choose from...
Australian Women Writers Book Challenge, hosted by the ladies at Australian Women Writers blog OR
Aussie Author Challenge, hosted by Joanne at Booklover Book Reviews - Participating in either of these would push my reading boundaries - I know I want to read more Canadian in the coming year (it's an ongoing goal), but either of these would also be good - and the levels are fairly easy (women - 3, 6 or 10, with an additional "genre" challenge or author - 3 or 12). Plus, I love the button for the Aussie Women challenge! ;)
Additionally, there is Julie's (at The Domestic Pagan) Pagan Reading Challenge (with 9 levels, reading from 1 - 41+ books and some further challenge suggestions) as well as Magaly's (of Pagan Culture) Witchy Books Reading Challenge (which has 4 levels of 4-35+ books). Why do I always find these things out after I've signed up for one...? Sigh.