Del.icio.us

Del.icio.us and Diigo are social bookmarking sites. You create an account and then start to bookmark sites. The key to social bookmarking are the tags that you use with your bookmarks. When you share your bookmarks with others they will look for resources using your tags.On both Del.icio.us and Diigo you can also keep bookmarks private. For example my tags include all the subject areas as well as tags for types of lessons, tools and resource so you could search for social studies, WWII, interactive to find interactive websites related to WWII. Below is a video from Common Craft about Social Bookmarking and Del.icio.us specifically.

media type="youtube" key="x66lV7GOcNU" height="344" width="425" Check out my social bookmarks: []
 * Del.icio.us bookmarks

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 * Diigo bookmarks on Google docs