Reshot - Tons of uniquely free stock photos. Handpicked & non-stocky
Img.vision - Image hosting & video hosting for eCommerce sellers
Mixkit - High-quality stock videos that are completely free.
UploadHouse - Thumbnail and resize your photos and images
UpLabs - The best material design, iOS & web resources, every day
ImageVenue - ImageVenue is a great online hosting service that allows uploading pictures for showing creative works with a simple-to-use technique.