Here's a quote from it:
We may post content on our Website that you have posted at other websites, e.g., Google ("User Content"). You agree to and do hereby grant us a royalty-free, sublicensable, transferable, perpetual, irrevocable, non-exclusive, and worldwide right to Use, modify, and perform any User Content we post to our Website. The term "Use" includes, but is not limited to, use, reproduce, modify, publish, list information regarding, edit, translate, distribute, publicly display, publicly perform, and make derivative works of the content.
A couple of years ago I expressed my concern to various folks at ALA, but it doesn't look like it made a difference.
Julie Ann Winkelstein, PhD, MLIS
Librarian, writer, teacher, activist