On the way to your virtual library, you may wish to install RFID on your physical (hard copy) library materials. Here is a story about how the libraries in Paris, France are doing just that:
City of Paris Chooses 3M Library Systems for Conversion of 42 Branches to RFID
http://www.foxbusiness.com/markets/industries/industrials/article/city-paris-chooses-3m-library-systems-conversion-42-branches-rfid_462877_6.html

A telling quote from the story: "The range of RFID-related library products continues to expand, enabling library staffs to provide more services at a time when customer demand is growing faster than financial resources..."