There are lots of ways to gather and organize files and information on the Mac. For photos and images, however, there’s not a great option. Dropbox is great for files, but Finder is Dropbox’s UI, which isn’t always the best option. Evernote is well-liked, but can be overkill for some.
Now there’s Ember.
Ember is a digital scrapbook. Like a real scrapbook, it’s easy to add photos and images, but because it’s digital, the data can be organized easily and quickly. There are tags and collections, as well as metadata and smart folders. There are some great built-in editing and annotation tools, as well.