What are some alternatives?
When comparing Imgur and Google Photos, you can also consider the following products
Flickr - image and video hosting website
Photobucket - Photobucket offers image hosting and free photo and video sharing.
500px - Connect, get inspired, and grow your skills.
ImageShack - Unlimited space to host images, easy to use image uploader, albums, photo hosting, sharing, dynamic image resizing on web and mobile.
ACDSee - ACDSee is an image viewer that uses very little system resources, and it has a small, sleek size that won't take up much space on your system.
SmugMug - SmugMug is a platform that allows amateurs and professional photographers to host their pictures and create a virtual gallery for promoting and selling their work.