2Collab - new tool for scientists from Elsevier

what is 2collab?
2collab is a new type of research tool launched in 2007- a collaboration platform designed specifically for researchers in the science, technical and medical communities.
Intended for use by professional researchers in academic, government and corporate institutions, 2collab provides three types of features:

1. Online bookmarking and reference management
2. Groups - for sharing with existing networks, or building new ones
3. Networking - find, evaluate and initiate contact with new people

http://www.2collab.com/