Looking for more information on cloning and cloning ethics? Check out this great website from genomics.energy.gov. This website covers the different types of cloning including DNA cloning (a common laboratory technique), reproductive cloning (the cloning of an organism or making an exact gentic replica) and therapeutic cloning (the production of a human embryo for research purposes). It has a section on how cloning technologies can be used and what animals have been cloned. It covers the risks and possible benfits from cloning and has many links to books and US policies on cloning.
For anyone interested in cloning, this is your one stop info shopping website.