Press Release

ON24 Inc. Launches Rich Media Network for Business and Technology Professionals

Insight24^SM Delivers Thousands of Webcasts, Podcasts, Corporate Videos, Online Demos and More in Over 30 Business and Technology Categories

San Francisco, CA – April 9, 2007 – ON24, Inc., the global leader in webcasting and rich media marketing solutions, today announced the introduction of Insight24, a business-to-business (B2B) rich media network of webcasts, podcasts, corporate videos, and online demos. The rich media network provides timely, and relevant, content to provide business and IT professionals with insight for day-to-day business and technology decisions, while extending content providers' existing libraries of rich media content to new audiences. Insight24 launches with over 100 participating companies, such as Brocade, EMC, Frost & Sullivan, Novell and US Telecom, that recognize the value of submitting rich media content to Insight24.

"Creating a dynamic relationship between our company and our customers across multiple touch points is instrumental to our business," stated Andrew Kordek, Quest Software's manager responsible for direct marketing. "For us, publishing our content on Insight24 is an excellent way to enhance the customer experience, while extending the value of our products and services to new audiences."

Designed to provide insightful and informative content to assist business and technology professionals with product information and research, Insight24 is the first online network dedicated to B2B rich media content. Free to all users and content providers, Insight24 regularly updates rich media content in over 30 categories, including collaboration, compliance, security, SOA, VOIP and more. In addition to business and technology categories, Insight24 also highlights recently published, most popular and featured rich media content, while providing visitors the ability to rank and comment on content. Registered users can also receive updates by subscribing to keyword and category-specific RSS feeds.

"With the introduction of Insight24, ON24 is carving out a niche in rich media content that has been largely ignored by the marketplace," explained Chris Shipley, co-founder and Global Research Director, Guidewire Group. "Insight24 has all the ingredients for success with a flexible business model and syndication strategy, while providing tangible value to both content providers and professionals."

"The Insight24 network provides business professionals with a single source for their rich media, which will help them with day-to-day business decisions," elaborated ON24 Inc. President and CEO, Sharat Sharan. "While content owners can extend the life of existing rich media content to new audiences. Insight24 is a win-win for both professionals and content owners."

As a platform agnostic network, Insight24 enables content providers to submit B2B rich media content to the network at no cost. Companies can leverage existing rich media content beyond the initial marketing campaign. In addition to increasing a company's visibility, Insight24's syndication network will further expand the reach of this content to a targeted audience of business and technology professionals.

"Our goal is to provide our IT.com users a 'one-stop shopping' portal for finding whatever information they want in whatever form they want it," said Mark Cordover, CEO of IT.com. "Our partnership with Insight24 furthers that promise for us."

For more information about Insight24, go to www.Insight24.com.

About Guidewire Group
Guidewire Group is a global research firm focusing exclusively on emerging technology companies and markets.

The company's online media, reports, and executive events bring the right people together at the right time with the right information to accelerate market development and business opportunity for entrepreneurs and those who support them.

About IT.com
IT.com helps technology buyers find the best solutions available on the Web—objectively and comprehensively. Unlike directories that only include those vendors who've paid to be listed, or horizontal search engines that dredge the entire Internet with every search, IT.com's vertical search engine delivers natural, relevant results focused exclusively on enterprise IT.

In a world where search is often inextricably entangled with marketing, IT.com's search engine imposes no hidden, advertisement-driven order on the results it returns. Instead, IT.com uses a special algorithm called dynamic peer ranking to order its results. This algorithm replicates how a large community of buyers judges each vendor's position in the market, so you know the results you see are untainted by marketing bias.

About Quest Software
Quest Software, Inc. delivers innovative products that help organizations get more performance and productivity from their applications, databases and Windows infrastructure. Through a deep expertise in IT operations and a continued focus on what works best, Quest helps more than 50,000 customers worldwide meet higher expectations for enterprise IT. Quest's Windows Management solutions simplify, automate and secure Active Directory, Exchange and Windows, as well as integrate Unix, Linux and Java into the managed environment. Quest Software can be found in offices around the globe and at www.quest.com.

About Insight24
Insight24 is a business-to-business rich media network of webcasts, podcasts, videos, and online demos for business and technology professionals. Insight24 provides timely, and relevant, information for day-to-day business and technology decisions. Insight24 is powered by ON24 Inc., the leading provider of webcasting and rich media marketing solutions.

About ON24, Inc.
ON24 Inc. is the global leader of webcasting and rich media marketing solutions. ON24's solutions provide companies a full range of applications and services to meet corporate and marketing initiatives such as lead generation, conferences and events, product launches, continuing professional education, internal communications, and executive announcements.

More than 500 global organizations in publishing, technology, life sciences, government, and financial services rely on ON24, including Cardinal Health, Cisco Systems, Motorola, CMP Media, Credit Suisse, Department of Education, Hewlett-Packard, National Science Foundation, and Samsung. ON24 is headquartered in San Francisco, with offices in Washington, D.C., New York and London.

“A World of Webcasting Solutions. One Webcasting Provider”™ - is a trademark of ON24.

“Insight24^SM” - is a service mark of ON24 Inc.