[OT] Where are you all getting your Super-Hero gifs from?

[Green Knight]

So far I've seen Captain America, Dr. Doom, Magneto, Thanos, and Spider-Man (The one below).

So where're you all getting these gifs from? Thanks for the help.

 

[Tabarnak Smokeblower]

There are a couple here

http://www.geocities.com/clarkanimations/marvel.html

TS

Edit: you can't seem to be able to link or save the image, but I was able by opening up the page in Netscape Composer... -TS

 

[Ankh-Morpork Guard]

www.gamegen.com

...I think...