Google Notebook - Note this - Duly noted

I notice today searching on Google an option on the end of each search results to 'Note this' (where you can click for the cache) and when you click it - it changes to 'Duly noted.' A pop-up box appears to edit what in effect seems to be a bookmark of some variation at the same time. It's branded 'Google Notebook.'

So... Google Notebook.

 

I wonder if it is just for personal use or if they will record that information for possible use with rankings.

 

i've seen this, but havnt ever used it.. i wonder if it can be exploited for our own evil uses?