A few blogs upload their images to these image servers. The problem is the blog provider will often switch these servers around willynilly, making the artist auto-id less effective.
At one point I tried normalizing these URLs, but bugs popped up and I decided to revert my change. But now, these image servers are common enough that I'm thinking of attempting normalization again.
I would like to hear comments on this, as well as any possible alternatives (maybe adding extra URL fields to artists).
Updated by albert