[Edit #1:Mr. Gunn is absolutely right. 2collab is more a Connotea or del.icio.us clone than a Digg clone. I’ve corrected the title of this post.]
2collab is a social bookmarking site where you can store and organize your favorite internet resources – such as blogs, websites, research articles, and more. Then, in private or public groups you can decide to share your bookmarks with others – stimulating debate and discussion. Members of groups can evaluate these resources (by rating bookmarks, tagging and adding comments), or add their own bookmarks. You can browse public groups and bookmarks, but must register (your name and email address) to access the full functionality – such as creating groups, adding comments, and adding bookmarks.
I find myself again asking: Why use Elsevier’s tool when there are so many other, similar tools available that don’t benefit for-profit companies?