Dropmark
Last semester I discovered a visual organization platform called Dropmark. Created by Oak, an independent design-led product studio in Brooklyn, New York, Dropmark is my go-to way to collect images and inspiration for my projects at school. Similar to Pinterest, you can create collections, but it goes even further because you can store links and files, too, with source information and even stacks within collections.
There are also features for searching, tagging, and adding directly from your browser or Mac menubar. The product is clean, functional, and incredibly useful for designers of all types. If you have a minute, check out their website and see for yourself how you can integrate it into your workflow.