I visited docstoc.com only to download a "free document" some months ago, and made a freetrial account via Facebook. I am pretty sure I did not provide any information on my credit card or my safe accession number. To my surprise I was debited in my credit card in US$19.95. Since I did not notice the debts on my credit card, I was debited for some months. I am trying to get my money back. Stay way from this site!