I'm trying to find an online service that will provide me weekly or
daily lists of publically traded companies who have made an annoucement about
the employment status of their chief executive officer.  Explanined a
different way, I want an e-mail or web page that every week will tell
me which publically traded companies hired a new CEO, which CEOs
resigned or retired, or which companies began a search for a new CEO.

The information would preferably be free, but
I would be willing to pay for it also.