Imgur - Imgur is a free and simple image hosting service with image editing feature. Signup is optional.
imgbox - Imgbox is a free image hosting service.
Flickr - image and video hosting website
Photobucket - Photobucket offers image hosting and free photo and video sharing.
NickPic.Host - Image hosting for artists, story tellers, and character gods like yourself. NickPic.
PostImage.org - Provides free image upload and hosting integration for forums.