Looks like it's hosted on Turbify by the image domains, except for an incidental 1x1 spacer that's hotlinked to Virtumondo's website. From what I can find about

Looks like it's hosted on Turbify by the image domains, except for an incidental 1x1 spacer that's hotlinked to Virtumondo's website. From what I can find about them they had a lawsuit in 2010 (before my time) for spamming and PG also complains about them spamming him, so I suppose he added it to annoy them with useless traffic.