Pearltrees.com specifically addresses the need to share and collaborate website and their content with others you are working with or want to work with. Pearltrees.com operates by planting a tree and then using social networks to interact with others that you or may not be connected with.
Each “pearl” is a visual symbol for a website and offers a short synopsis. The pearl can be moved between entities, shared, commented, and publicized on twitter or facebook. The system uses a plug-in to most common browsers: Chrome, Explorer, and Firefox. The pearls can be dropped into other trees and easily organized.