Imgur - Imgur is a free and simple image hosting service with image editing feature. Signup is optional.
Techlicious - Computerized cameras and cell phones imply that the vast majority of us have an enormous amount of photographs scattered wherever from smartphone and PC hard drives to Facebook and Instagram profiles.
Flickr - image and video hosting website
snapfish - Snapfish is a new generation web-based photo sharing and photo printing service owned by Hewlett-Packard.
Photobucket - Photobucket offers image hosting and free photo and video sharing.
digiKam - Professional Photo Management with the Power of Open Source