How does the Library work
The Library folder in your inventory contains content provided by Linden Lab for use by all Residents. The way this folder works is similar to a "shared drive" on your computer network. All Residents share the same content at any given time. You cannot use objects in the Library until you copy them to your own Inventory; you can drag a copy onto the ground, your avatar, or another folder in your Inventory.
From time to time, Linden Lab adds, edits or deletes content from the Library to ensure that it remains a useful resource for all Residents.
To make sure that any changes to your Library cause a minimum amount of inconvenience, we've archived all of the content and made it available for you at any time at the following inworld location:
http://slurl.com/secondlife/Stillman/136/75/23
Simply click on the wooden box that says 'Old Library Content' to retieve a package containing all items that have been removed from the Library.