A little late signing up to this, but here goes.
What is a pick-your-thon?
Basically, you can choose whether to use it as a review-a-thon or a readathon. I'm going for the readathon option.
Pretty flexible. I'm going to carry on down my TBR shelves, reading as much as I can. I probably won't do many update posts this time, as I want to concentrate on reading. And I expect I'll only do oneor two mini-challenges as well.
Are you doing this one? Do link up in the comments and tell us what you're planning.