Coca-Cola Brazil, JCPenney and Monster Worldwide are among the first companies who are showing advertisements across Microsoft Office Live, Windows Live Mail and MSN Spaces.

Office Live display ads are initially being tested in the U.S. and immediately sold out of their available openings for beta advertisers.

Tests will continue on these and other Microsoft sites and services throughout 2006.

Windows Live display ads are currently being tested in MSN Spaces in Australia and Italy, and Windows Live Mail display ads are being tested across the world.

Source: Microsoft Developing Web’s Largest Advertising Network