Cambridge Information Group to acquire ProQuest Information andLearning

[Liblicense-L Listowner <liblicen@pantheon.yale.edu>]

CAMBRIDGE INFORMATION GROUP ANNOUNCES AGREEMENT TO ACQUIRE 
PROQUEST INFORMATION AND LEARNING

New Company's Leadership to Include Marty Kahn as CEO, Matt Dunie 
as President

Contact:
Jani Spede
CSA Public Relations
jspede@csa.com
(866) 669-2889

BETHESDA, Maryland - December 15, 2006 - Cambridge Information 
Group (CIG) announced today it has entered into an agreement to 
acquire ProQuest Information and Learning, a segment of ProQuest 
Company (NYSE: PQE), for approximately $222 million.

Under the agreement, CIG will combine its Bethesda, 
Maryland-based CSA subsidiary with Ann Arbor, Mich.-based 
ProQuest Information and Learning to create a new, privately held 
independent company. The new company plans to continue operations 
in both locations.

Both CSA and ProQuest offer libraries and their users access to 
high-quality electronic resources. CSA and ProQuest will serve a 
combined customer base of more than 25,000 library customers.

CSA's products include CSA Illumina, the platform from which more 
than 100 scholarly databases in the natural sciences, social 
sciences, arts and humanities and technology fields are made 
accessible; Ulrich's Serials Analysis System, a powerful tool for 
library professionals who need to identify, analyze, evaluate and 
create reports about the library's print and electronic serials 
holdings; and the recently launched CSA Illustrata, which permits 
searching and retrieval of charts, graphs, illustrations and 
their captions within articles and documents.

ProQuest provides global access to one of the largest online 
content repositories in the world. It is best known for its 
extensive collection of business, economics, general reference, 
genealogy, humanities, social sciences, scientific, technical and 
medical content. ProQuest's product lines include 
Chadwyck-Healey(r), a collection of more than 40 extensive 
reference resources of the world's literature; UMI(r) microform 
vault, the largest commercially available microform collection in 
the world; ProQuest Digital Dissertations; Serials Solutions; and 
ProQuest Historical Newspapers(tm), an archive of 14 million 
pages dating as far back as 1764 which includes The New York 
Times, The Wall Street Journal, The Washington Post, The 
Christian Science Monitor, The Los Angeles Times, The Chicago 
Tribune, The Atlanta Constitution, The Boston Globe and The 
Hartford Courant.

Andrew M. Snyder, president of CIG, said, "Combining ProQuest's 
unparalleled collections with CSA's own rich content will enable 
us to further build upon our mission of delivering an exceptional 
research service. The new company will leverage deep content sets 
with a history of innovative product development to bring the 
community of libraries, researchers, faculty and students one of 
the most extensive electronic resources available."

After the transaction closes, Martin Kahn will serve as CEO of 
the new company. He will relocate to Ann Arbor, Mich. A seasoned 
information industry executive, Kahn is the former chairman of 
business and financial information aggregator OneSource 
Information Services, Inc. He also served as chairman of Ovid 
Technologies, Inc., an aggregator of medical and scientific 
databases and full-text journal articles and as president of BRS 
Information Technologies, Inc. Kahn earned an MBA from Harvard 
Business School and a BA from Yale.

Kahn said, "I am thrilled to have the opportunity to lead this 
exciting new company. Both companies have for many years 
dedicated themselves to serving the needs of librarians, scholars 
and students. We are committed to building on those traditions to 
create a great company for many years to come."

Matt Dunie, currently president of CSA, will serve as president 
of the new company. Dunie commented, "The ProQuest Information 
and Learning and CSA products are complementary. We believe that 
both companies share many values - especially future."

David "Skip" Prichard, currently president of ProQuest 
Information and Learning, will be an active contributor to the 
transition process. After the transition is successfully under 
way, he plans to pursue new career opportunities consistent with 
his interests and leadership experience.

Prichard said, "I believe the combination of CSA and ProQuest 
Information and Learning will be a successful venture and an 
important contributor to the library community. Both companies 
have a strong heritage, a deep sense of responsibility to the 
materials we present and an obligation of excellent

About Cambridge Information Group

Cambridge Information Group (CIG) is a privately owned group of 
information services companies and educational institutions 
located around the world. CIG's operating companies include: CSA, 
R.R. Bowker, RefWorks and the Sotheby's Institute of Art. CIG is 
also the largest shareholder of Navtech, Inc. ("NASDAQ:NAVH.OB").

About CSA

CSA has been an innovator and leader in publishing and 
distributing quality abstracts and indexes for more than 30 
years. A worldwide information company, CSA's products serve as a 
guide to researchers, faculty, librarians and students enabling 
discovery and aiding the identification, management and 
organization of quality information. CSA specializes in 
publishing and distributing, in print and electronically, more 
than 100 bibliographic and full-text databases and journals in 
four primary editorial areas: natural sciences, social sciences, 
arts & humanities and technology. CSA is headquartered in 
Bethesda, Maryland and has offices throughout the U.S., Canada, 
Latin America, Australia, Hong Kong, Japan, Europe and the United 
Kingdom. Researchers in more than 4,000 institutions worldwide 
use CSA information resources and CSA's print journals are used 
in more than 80 countries. For more information about CSA, visit 
www.csa.com.

About ProQuest Information and Learning

ProQuest Information and Learning is a world leader in 
collecting, organizing, and publishing information for 
researchers, faculty and students in libraries and schools. It is 
widely known for its strength in business and economics, general 
reference, genealogy, humanities, social sciences and STM 
content. The company develops premium databases comprising 
periodicals, newspapers, dissertations, out-of-print books, and 
other scholarly information from more than 9,000 publishers 
worldwide. Users access the information through the ProQuest(r) 
Web-based online information system, Chadwyck-Healey(r) 
electronic and microform resources, UMI(r) microform and print 
reference products, eLibrary(r) and SIRS(r) educational 
resources, and Serials Solutions e-resource access and management 
solutions. ProQuest(r) Smart Search was named "Best Specialist 
Search Product" by the International Information Industry Awards 
in late 2005. For more information about ProQuest Information and 
Learning, visit www.il.proquest.com.

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