[TomAnthony]

Is there an advantage to having the keyword in the subdomain rather than the query string?

Also - http://dinosaur.jpg.to/ doesn't work unfortunately. :(

[city41]

That one works for me, but http://puppy.jpg.to/ doesn't work for me (brings up a broken image that is a link to http://www.myfreewallpapers.net/nature/pages/beagle-puppy.sh...). So it looks like the "proxy" nature of this service will lead to failure at times.