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.
Kyno - Kyno is a productivity-boosting media management app aimed at filmmakers, video journalists, media...
digiKam - Professional Photo Management with the Power of Open Source
Daminion Server - Daminion is a leading digital asset management solution. On-premises and cloud version are available.
Flickr - image and video hosting website
Open Asset - Build a library of marketing and design resources with OpenAsset. The world's leading digital asset management system to AEC professionals.