Reader Alert: Open Library

I am still navigating Open Library but here is what is exciting:

• Over a million free e-books
• Books can be read or read-to (there is a nice audio integration) - Gutenberg + Librivox say
• Signing up is free; it gives you the ability to add or edit stuff
• You can create lists (woo hoo! though I wonder why I need another listing service for)
• A small but growing lending library

Signing up already? That's what I thought...