Pxleyes - Pxleyes is an online Photoshop contests site that enables you to submit your photos to get a chance of having them placed on the front page.

Img.vision - Image hosting & video hosting for eCommerce sellers

Bitpine - Bitpine is a community-led image-sharing site that aims to help beginners and experts submit their creations online.

UploadHouse - Thumbnail and resize your photos and images

PhotoshopDisasters - PhotoshopDisasters is an online image contest website that allows you to submit your artwork to have it posted on the front page.

ImageVenue - ImageVenue is a great online hosting service that allows uploading pictures for showing creative works with a simple-to-use technique.