Exclusive Marketplace for Nursing Professionals Launched by Nurses Service Organization

Exclusive Marketplace for Nursing Professionals Launched by Nurses Service
Organization

PHILADELPHIA, June 1 /PRNewswire-FirstCall/ -- Aon Affinity, a subsidiary of
Aon Corporation (NYSE: AOC), announced that its Nurses Service Organization
has launched the NSO Marketplace(SM) to offer a broader array of products and
services to continue to meet the insurance, risk management, professional and
personal needs of the nursing community. For more than 30 years, NSO has been
the leading provider of professional liability insurance to over 675,000
nurses in the United States.

(Logo: http://www.newscom.com/cgi-bin/prnh/20041215/CGW049LOGO)

"The launch of NSO Marketplace represents a change for NSO by offering
products and services outside our core insurance solutions while expanding our
current insurance portfolio," said Michael Loughran, executive vice president
of Aon Affinity.

NSO Marketplace offers a unique differentiator in the industry by providing
nursing professionals access to negotiated savings with top merchants,
including discounts on mobile phone services, medical software, career tools,
uniforms and brand-name professional shoes.

"We really wanted to bring additional value and something new to nursing
professionals. With their help, we identified an initial set of products that
were important to them, and leveraged our purchasing power to negotiate
best-in-class pricing on their behalf," added Loughran.

Visit www.nso.com/marketplace to learn more about products and services
offered through NSO Marketplace.

CONTACT:Catherine Schneider at 215.293.1288 OR catherine_schneider@asg.aon.com

About Aon Affinity
Aon Affinity combines the specialized knowledge of affinity program management
with the extensive resources of a global company to bring an everyday
commitment to helping clients achieve their goals. Aon Affinity offers full
service capabilities; technical expertise and industry knowledge to add value
through an innovative approach to program strategy, from the design of
products and services to the delivery of the marketing message. Log onto
http://www.aon.com/affinity

About Aon
Aon Corporation (NYSE: AOC) is the leading global provider of risk management
services, insurance and reinsurance brokerage, and human capital consulting.
Through its more than 37,000 colleagues worldwide, Aon readily delivers
distinctive client value via innovative and effective risk management and
workforce productivity solutions. Aon's industry-leading global resources and
technical expertise are delivered locally through more than 500 offices in
more than 120 countries. Named the world's best broker by Euromoney magazine's
2008 and 2009 Insurance Survey, Aon also ranked highest on Business
Insurance's listing of the world's largest insurance brokers based on
commercial retail, wholesale, reinsurance and personal lines brokerage
revenues in 2008. A.M. Best deemed Aon the number one insurance broker based
on brokerage revenues in 2007 and 2008, and Aon was voted best insurance
intermediary, best reinsurance intermediary and best employee benefits
consulting firm in 2007 and 2008 by the readers of Business Insurance. For
more information on Aon, log onto http://www.aon.com/.

SOURCE Aon Corporation

Catherine Schneider of Aon Corporation, +1-215-293-1288,
catherine_schneider@asg.aon.com