Web 2.0 Services Drive E-mail Client Evolution

New Study by the Radicati Group Provides an Analysis of the E-mail
Client Market, Including Desktop, and Webmail Clients in Corporate and
Consumer Markets


PALO ALTO, CA -- (MARKET WIRE) -- 02/22/06 -- The Radicati Group,
Inc.'s latest study, "E-mail Client Market, 2006-2010," provides an
in-depth look at the market for webmail and desktop e-mail clients.
The study examines three segments: desktop e-mail clients, consumer
webmail clients, and corporate webmail clients.


According to the study, the worldwide installed base of e-mail clients
will increase from about 1.9 billion seats in 2006, to nearly 3.6
billion seats in 2010. This represents an average annual growth rate
of 18%, and an overall increase of 91% between 2006 and 2010.


Corporate and consumer webmail clients will drive growth in the e-mail
client market over the next four years. New Web 2.0 techniques such as
AJAX and DHTML have opened the door for a new breed of webmail clients
that offer desktop-like features and improved performance. Consumers
and corporate users are increasingly using these clients to complement
or replace desktop solutions.


Microsoft has a comfortable lead in the desktop client market with MS
Outlook and MS Outlook Express clients. However, the company is facing
increased competition from the free Mozilla Thunderbird desktop
client, which has developed a strong following, particularly from
within the open source community.


To order a copy of the study, or to subscribe to our market research
service, please visit our web site at http://www.radicati.com, or call
Ruchi Batra at (650) 322-8059.


About The Radicati Group, Inc.


The Radicati Group covers all aspects of email security, email
archiving, regulatory compliance, wireless technologies, web services,
identity management, instant messaging, unified communications, VoIP,
and more. The company provides both quantitative and qualitative
information, including detailed market size, installed base and
forecast information on a worldwide basis, as well as detailed country
breakouts.


The Radicati Group works with corporate organizations to assist them
in selecting the right products and technologies to support their
business needs, as well as with vendors to define the best strategic
direction for their products. We also work with investment firms on a
worldwide basis to help them identify and assess new investment
opportunities.


The Radicati Group, Inc. is headquartered in Palo Alto, CA, with
offices in London, UK.