Here is a very informative site that is disclosing some informations about the cloning experiments that started even before the WWII:

Clone Truth: http://www.clonetruth.com/

Here is a site containing publicly avaiable informations of cloning successes:

http://www.bibliotecapleyades.net/ciencia/ciencia_genetica07.htm

Here is a video showing a lot of fetuses being disposed from undisclosed source:

http://www.youtube.com/watch?v=g4A-TRmoV68

Feel free to add any interesting informations about clones existing in our society.