For the curious, historians, search professionals, and more, Google puts together their Zeitgeist review for 2010 here. We'd love to see this for years past if anyone wants to chime in.  

All of this searching is fascinating, but if you're concerned about your privacy in search, you can now "Disconnect" with a former Googler's new browser tool that disables third party data tracking here: http://budurl.com/84al

On to 2011!