Social Bookmarking

What is it?

(wikipedia definition)

Why Know About It?

There are a couple of very good reasons. First, it provides for a place for you to keep your bookmarks online, organized by tags so they are cross-referenced in categories. This makes them very easy to find again. Second, you can see all the great sites that others are finding. After all, you're too busy to go looking for new sites all the time, so why not just watch what the WORLD is finding? Finally, since every tag has an RSS feed with it you can subscribe to them so that you see newly found sites right away.

Social Bookmarking Sites (from wikipedia)