Gifs
 

Does anyone know a good site to get x-men or ninja turtle gifs?

Try http://www.gsarchives.com

Woah, how can u animate them??

Easy. Press 'animate'. :D

I mean when u make GIFs...

Well, you need a bunch of still images of the frames of action, and you need a gif animating program to combine all of 'em into one image. I use MS Gif Animator -- it's an old freeware program that was eventually discontinued by Microsoft, but if you look real hard you can still find it around. It's pretty barebones, but it does what I need it to do. And I don't feel bad about using it because it's not like I pirated it or anything. :)

It's actually http://www.gsarchives.net

Trust me, I used to be a staffer at the site.