I have seen artists use CitrSolv or NevrDull on magazine images to make interesting backgrounds but this is the first time I have seen someone painting with it. Take a look, its fascinating. I bought some of this for a class a couple years ago but never really used it, I think it may be time to schedule a day to play with it.
Another new thing to share is the Google Art Project which lets you go to many museums around the world and see their art. You can really zoom in and make them big and you can make your own art collection. You could literally spend hours looking at the art. It is fantastic and full of inspiration.