[Source: Hamilton, B., 2010. In Their own words: students provide a video tour of their Netvibes learning portals. [Online] Available at: http://theunquietlibrarian.wordpress.com/2010/03/26/ in-their-own-words-students-provide-a-video-tour-of-their-netvibes-learning-portals/ [Accessed 7 February 2011].]
Click here to access Netvibes
This video explains how social bookmarking websites work, such as Delicious:
Click here to access Diigo