Social Bookmarking in Plain English

This videoclip gave a very clear presentation on the subject of social bookmarking. So easy to understand! In summary, there are only three things that one needs to do to start bookmarking socially. First, sign-up with delicious.com and add two buttons to the browser: My del.icio.us button and Tag this button. Secondly, start bookmarking sites and tagging. Thirdly, be social. By default, everything posted to Del.icio.us is able to be viewed publicly. However, a user can mark specific bookmarks as private... which defeats the very purpose of social bookmarking. After all, the focus is not on having a private list of bookmarked sites but a shared one.