It's actually freebitco and not freebitcoin per say, if I understand correctly, freebitcoin is a different website unrelated with freebitco.
I always use the term "freebitco" for referring to this website to avoid any confusion with other services, but if you visit freebitco.in, you will see the term "freebitcoin" at top of the website and therefore, it shouldn't be wrong if the term "freebitcoin" is used for referring to freebitco.in.
