del.icio.us allow us to find what others consider important to save, in other words is the people who decide what matters and what not. This is a video I found in Brightcove, another video host site like You Tube, the quality it is not good but the content is great.
How to use Del.icio.us Tutorial
Medical Pages on Del.icio.us
Social Bookmarking Del.icio.us: A Personal and Professional Productivity Tool