Carlos has a presence on Twitter as discussed before but he seems to have two facebook pages
Official Facebook and has some very good photos from the League cup final from family and friends.
and some good Villa related photo’s here
There is also another facebook page but I reckon this appears to be a fake. (EDIT – apparently it is not a fake)
We should see more players try this but it seems they get themselves into too much trouble, see Darren Bent on Twitter and facebook and James Collins on Twitter.