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Google has released (yet another) free service, the Google Notebook. It is a research type tool allowing you to save clips from various web sites into a notebook. I'm not quite sure how useful it is, but it seems handy.
I'm building a notebook for ColdFusion, which I've shared and may be useful to others (once I get content in). It appears though that I can't let others add to the notebook, which is unfortunate. If multiple people could add to the notebook, it could turn out like digg or del.ioc.us.