This is the third column on key demographics to follow in the Presidential race this year.

FORBES: ZOGBY: Demographics and 2012: Income, Education, Class

She won the Indian Wells championship this month and is bidding to become the third woman to claim that title and Key Biscayne in the same year.

NPR: Sharapova Beats Errani In Key Biscayne Quarters

This is the third straight quarter we've seen significant subscriber growth from Virgin, a development that we believe is key to driving higher customer satisfaction and improved metrics for Virgin as well.

ENGADGET: TiVo releases Q4 results, announces transcoder and IP set-top box on the way

In the mix this week is third quarter earnings and I am focusing on one key company for each day, Tuesday through Friday.

FORBES: Four Earnings Reports To Make Or Break The Market

It is doubtful that Zambrano could have accomplished all this had he not embraced a third key: the revolution in computers and communications.

FORBES: Cement meets the cyberworld