Hi,

You may be interested that the Computer Society History Committee
     http://www.computer.org/portal/web/volunteercenter/history
has updated the Society's computing history timeline
     http://www.computer.org/cms/Computer.org/Publications/timeline.pdf

Please note that our committee does not claim that this is in any sense a list of "most important" events during any of the time intervals from 1997-2010 that the committee covered in its update.  Rather, these are  meant to be representative events including international and technology diversity.

Best regards, Dave