CGTrader - CGTrader is an online marketplace at which artists can sell and buy Revit and 3D models.
Img.vision - Image hosting & video hosting for eCommerce sellers
RigModels.com - Free 3D Search Engine. Explore & download 3d models for free. Rig & Animate static models easily.
UploadHouse - Thumbnail and resize your photos and images
3DOcean - 3D Models & Accessories From $1 for 3D Models, Textures, Materials & Shaders, 2D Concepts...
ImageVenue - ImageVenue is a great online hosting service that allows uploading pictures for showing creative works with a simple-to-use technique.