Plex has made it easier for premium users to organize their photos and to unearth specific snapshots from their massive collections. The service now auto-tags photos based on what its new machine learning technology sees. If the tech detects a dog in a photo, for instance, it could tag that image with the words "dog" and "puppy." Since tags are useless if you can't sort your images with their help, Plex has also updated its web app's interface to be able to search tags. Further, the interface will now display related images based on the tags you look up.