What you can find on the official IBO Online Curriculum Centre (OCC)
NB: You have to log in to this, using your school's IB code and your own login/password, which your PYP coordinator should have given you.
Warning: The OCC is not user-friendly. There is something new coming -- the Digital Space Initiative. Word has it that we may get this by October 2010. Let's hope....
Example of topics on the Librarian forum
Example of topics on the PYP Librarian forum