Diigo

Leigh Hynes writes about the usefulness of diigo social bookmarking: ""Diigo" social bookmarking is amazing for sharing resources. You can make a group and share with them as you find stuff on the net and so can they. You can make lists so they can be curriculum orientated or general school stuff, you can tag them so they are easy to search for. If you use Chrome as a browser, the diigo tool just sits on the browser and is so easy to use. You can get a daily or weekly or monthly record of what has been added to your library. Highly recommended."