ezgif.com - Ezgif.com is simple online gif maker and toolset for basic animated gif editing.
DeviantArt - deviantART was created to entertain, inspire, and empower the artist in all of us.
Instagiffer - Create GIFs from anything!
Brush Ninja - Hand-drawn Animated Gif Creator
Gifsicle - Gifsicle is a powerful, simple command line tool for creating, editing, and optimizing animated GIFs.
pixiv - pixiv is an illustration community service where you can post and enjoy creative work. A large variety of work is uploaded, and user-organized contests are frequently held as well.