As of Feb14^th, 2012, uploading new content via Facebook has been disabled. You can upload new content via SlideShare and allow your Facebook app to display that content. 

To learn how to do this, please refer to the FAQs below:

1. How do I upload content via SlideShare?

2. How can I display my SlideShare content on Facebook?

All of the content uploaded via Facebook prior to Feb14^th, 2012, will not be impacted by this change.