Study Stickies Facebook Application

I would appreciate feedback on my Study Stickies Facebook application:

http://apps.facebook.com/studystickies/

Study Stickies allows you to take notes (stickies) from books as well as online resources (e.g., pdf/html documents, videos, etc.).

The vision behind Study Stickies is two-fold:

1. it allows people to take notes for themselves for easy browsing/search; and
   
2. these notes accumulate allowing you to learn from others.
   

Imagine for example getting stuck on page 147 of your algorithms textbook or SQL reference. You might then see if others have made any insightful stickies for that page.