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Notebook

http://www.google.com/googlenotebook/faq.html As of July 2012, Google Notebook has shut down and all Notebook data should now be in Google Docs.
http://support.google.com/bin/answer.py?hl=en&answer=1083134

Google Wave

As we announced in August 2010, we are not continuing active development of Google Wave as a stand-alone product. Google Wave will be shut down in April 2012. This page details the implication of the turn down process for Google Wave. Stage 1: Google Wave is read-only -- January 31, 2012 In this stage, you will no longer be able to create or edit waves.
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Goggles

http://www.google.com/mobile/goggles/#text