Google is currently one of the largest Internet-based companies in existence (if not THE biggest), hosting dozens of different services.
Google probably isn't evil per se, but they do want you to put all of your data on their servers. Trusting any one company that much is probably a bad idea. If your entire life is on Google, what happens to Google happens to you. For a remote idea of what can happen, look at Yahoo!.
Archive Team has decided to take a census of Google services, to see what has and hasn't been saved. See the Froogle project.
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Miscellaneous
Does a tool suite exist that backs up all of the Google Apps cloud?
Vital Signs
Pump up the NASDAQ.