Mia Newman produced a nice interactive map where you can see how Facebook users from one country are connected to the rest of the world. As far as I see, the patterns are rather clear: you get most connections in countries where there is a lot of expats or from where the country has lots of immigrants.
For Venezuela things are like this: people in Venezuela tend to connect to people in Colombia, in Spain, in Mexico, in Peru and in Chile. I suspect most connections to the South American countries are from immigrants of those countries reconnecting to their relatives, even if Venezuelans are increasingly leaving their country for more secure pastures. Colombia is much safer these days.
And most people in Spain connected to Venezuela are - this is my educated guess- Venezuelan expats, a lot of them with recent Spanish roots.