I just ran across a page that list a number of Social Bookmarking Top Sites. If you have not heard of a social bookmarking sites yet you will likely see them become very popular over the next year as developers start rolling out their version of Web 2.0 which is really just a way of having people interact even more on the internet instead of just by viewing web pages.
Social Bookmarking sites are websites where you can bookmark webpages and then they become public so other people can see your recommendations. This is great for a person as this will allow you to be able to see your favorite sites by logging in from any computer that is connected to the internet. Also as a marketer social bookmakring allows you to get you word out about your webpages, articles and views that otherwise can just get lost in the noise of the internet
Of all of the Social Bookmarking sites, and you have to believe that there are more coming out every week, there are a few that are more popular than others and you will have to test them out to see which features, crowd and penetration that the various services have but here are a few of my favorites.