The Image Collector Screenshot

The Image Collector (referred to as TIC) is an application that has been designed to allow the quick viewing, categorisation, and downloading of images from a range of web services. TIC allows you to choose the web service you would like to download from, fetches the latest available images and displays their thumbnails in a scrollable grid. You can then left-click an image to download and display its full version; if you want to keep that image, middle-click on it and it will be downloaded to the selected category.
Categories point to a location on disk, so you can activate a category and download an image, and it'll be automatically placed into that category's location. This, combined with queued downloading, allows images to be downloaded and categorised very quickly.