Memonic is a relatively new tool for curating collections of information from the web. Memonic’s key function is to give users the power to clip sections of websites and build them into a personal collection. Along with the clipping of information, users can add commentary to each item they place into their personal accounts. For example, if I clipped a paragraph from iLearnTechnology I could also add some notes for myself about that paragraph.
http://www.freetech4teachers.com/2010/02/memonic-capture-and-organize-your-web.html