SmugMug allows users to upload multiple images at once and organize them into albums. It has a customizable interface that makes it easy to view and manage photos, even for beginners. Users can earn money by uploading photos or inviting friends. Flickr focuses on community sharing, allowing users to view friends' photos easily. Imageshack was a simple site for uploading images without registration until 2014, when it added more features. Minus has a cat logo and integrates with social media for sharing photos with friends. Photobucket has powerful editing tools and allows sharing photos on multiple social networks.