1. A method for displaying digital images, comprising the computer-executed steps of: determining a first plurality of images; determining, based on the number of images in the first plurality of images, a pixel resolution of each image of the first plurality of images; causing a first collage to be displayed at a first resolution, wherein the first collage is composed of the first plurality of images; determining a second plurality of images; determining, based on the number of images in the second plurality of images, a pixel resolution of each image of the second plurality of images; causing a second collage to be displayed at a second resolution concurrently with the first collage, wherein the second collage is composed of a second plurality of images; wherein the steps of determining the pixel resolution for the first and second plurality of images are performed such that the first resolution and the second resolution are the same regardless of the number of images in the first and second plurality of images; wherein the number of images in the first collage is different than the number of images in the second collage; wherein the method is performed by one or more computing devices.