I don't know what Googke Notebook features there will be, but I like the idea of a Notebook or a Notepad online, where I can keep a journal (not a blog, private please), where I can choose which notes I share or not, where I can insert clips from the hard drive or the web, label or tag my notes, search them... like an online based Evernotes and better.

Clipmarks could do it. just add a Notebook or Notepad to each user account and display all their clips one below the other, and add the option of emailing any note or clip to anyone (the actual note or clip, not a URL please). Can you do it guys??????

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where I can choose which notes I share or not, where I can insert clips from the hard drive or the web, label or tag my notes, search them... like an online based Evernotes and better.
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The notes to share better come with confirm-button in case some of my private stuff get's into the wrong hands

I'd love this and maybe after using it after a while need a TODO list with REMINDER to go along with it.