In the interest of shameless self-promotion, take a look at a cool animation that Kindred assembled from quarterly BIS banking data between 1999 and 2010. This network depiction stems from our first joint effort (and the "our" here includes Sarah Bauerle and Andrew Pennock as well as Will and me) to apply complex network theory to international financial integration (you can read the full paper here). The single frame above is one of 43 quarterly observations.
UPDATE: [Credit where it's due: for the animation I worked off some basic code from Kieran Healy, found here. I modified it for our purposes of course, but without his basic gifpipe code I wouldn't've been able to put it together with my limited programming skills. So thanks, Kieran, for making your stuff publicly available.
Also, a nerdy request: I wasn't able to find a way to put the country labels outside the graph, next to the nodes. I.e., I can move all the labels up or down, left or right, some constant distance. But I want to move them all outward so they sit next to their respective nodes, rather than above/below/to the side of the node. They would be more clearly visible that way. Any suggestions? I'm using igraph, because it supports tnet, so it would have to be something that works with those packages. -wkw]
UPDATE II: [This is the best data available. So, the small number of nodes isn't a modeling choice, but rather an artifact of data limitations. This is all discussed in more detail in the actual paper. -wkw]