Microsoft announced on the PressPass about adExcellence.
"Microsoft Corp. today unveiled two tools and an accreditation program designed to help customers make the most of their experience with Microsoft adCenter and Live Search. Microsoft adExcellence, opening to all U.S. adCenter users today, is an official training and accreditation program for adCenter. The Microsoft adCenter Add-in for Excel 2007 and the Webmaster Center are new tools designed to help advertisers improve the quality of their search advertising campaigns and help optimize Web sites for Live Search, respectively."
The purpose of Microsoft adExcellence they say is "The Microsoft adExcellence program provides agencies and advertisers with the opportunity to become certified adCenter experts. The program offers more than 20 free training modules and a fee-based examination, providing users with the ability to demonstrate to their customers and prospects that they are fully trained and proficient in using adCenter. Accredited members will be listed in the adExcellence Membership Directory and will receive an adExcellence logo for use on their Web sites and marketing collateral. More information about the program can be found at http://www.adexcellence.com."