SumTotal Enterprise Suite 7.2 First Learning Management Solution in Google Enterprise Professional Program

Mountain View, Calif. – May 9, 2006 – SumTotal™ Systems (NASDAQ: SUMT), the largest provider of talent, learning and business performance technologies and services, announced it has joined the Google Enterprise Professional program.

As a partner in the program, SumTotal is integrating the Google Search Appliance within its learning management enterprise suite. By launching a Google search from the SumTotal Enterprise Suite 7.2, SumTotal’s government and commercial customers will have an easy and accessible hub for tapping into: 1) classroom and online instruction, activities and materials, 2) informal learning such as presentations, case studies and spreadsheets and 3) assessments of employee performance. SumTotal’s clients will be able to rely on Google’s search to find information sitting in legacy, mainframe and relational databases. Employees can quickly recover information wherever it’s stored across the enterprise and deliver that data where it’s needed most.

“Formal training and learning content is only a part of the information people need to gain the insight and knowledge required for their jobs,” said Jon Ciampi, vice president of marketing for SumTotal. “As a result of SumTotal’s partnership with Google, our customers now have a single point of access to their respective companies’ knowledge bases. The joint solution will allow customers to quickly extract the data they need to develop and buttress online courses, new-hire training, education around product launches, or any formal learning and development efforts.”

The Google Enterprise Professional program includes developers, consultants and independent software vendors that provide value-added services for Google enterprise products.

“Google is excited to have SumTotal as a partner in the Google Enterprise Professional program. We’re looking forward to bringing the power of Google search to users of talent, learning and business performance software,” said Kevin Smith, program manager for Google Enterprise Professional.

About SumTotal Systems, Inc.

SumTotal Systems, Inc. (NASDAQ: SUMT) is the largest provider of talent, learning and business performance technologies and services. SumTotal deploys mission-critical solutions that align talent and knowledge with organizational processes and business goals to generate significant bottom-line results. With more than 17 million users worldwide, SumTotal has helped accelerate performance and profits for more than 1,500 of the world’s best-known companies and government agencies including Accenture, Aetna, Cendant, DaimlerChrysler, Delta Air Lines, Harley-Davidson, Microsoft, Novartis, PNC Bank, U.S. Army, U.S. Air Force, U.S. Navy, U.S. Coast Guard, U.S. Bancorp, United Airlines, Vodafone, Wachovia and Wyeth. SumTotal has offices throughout the United States, in London, Paris, Singapore, Sydney, Tokyo, Hong Kong and Hyderabad, India. For more information about SumTotal's products and services, visit www.sumtotalsystems.com.

SumTotal and the SumTotal logo are trademarks or registered trademarks of SumTotal Systems, Inc. or its affiliates in the United States or other countries. Other names may be trademarks of their respective owners.

Safe Harbor Statement/ Forward-Looking Statements
This press release contains forward-looking statements. These statements represent SumTotal Systems' expectations or beliefs concerning future events. These statements are not historical facts or guarantees of future performance or events and are based on current expectations, estimates, beliefs, assumptions, goals and objectives, and involve known and unknown risks, uncertainties and other factors that may cause actual results to be materially different from the results expressed or implied by these statements. Readers of this press release are cautioned not to place undue reliance on any forward-looking statements. Additional factors that could cause actual results to differ include, but are not limited to (i) unknown errors or bugs in SumTotal Enterprise Suite 7.2; (ii) the inability to fix in a timely fashion unanticipated bugs, errors or defects that materially impact the functionality or usability of SumTotal Enterprise Suite 7.2; (iii) the acceptance of SumTotal Enterprise Suite 7.2 and future product offerings; (iv) the ability to successfully implement SumTotal Systems' solutions; (v) the ability to successfully address technological developments and standards; (vi) the ability to successfully manage growth, significant current and expected additional competition, and the need to continue to expand product distribution and services offerings; (vii) the growth of the business performance and learning management software market; and (viii) other events and other important factors disclosed previously and from time to time in SumTotal Systems' filings with the Securities and Exchange Commission, including the annual report for fiscal year 2005 on Form 10-K filed March 28, 2006, and Form 8-Ks.