I am really pleased BlackCoin has been added to Pock.
I have been using the site for a while to buy Amazon, Asda and M&S gift cards with other alts.  I wont be spending my BCs there just yet.
This has massively expanded the amount of things you can buy with BC traded for gift vouchers.  Food, clothing, furniture, electronics etc. etc.

When you sign up with Pock, you only need a username and password.  Fee free with optional donations.