NaviNet to Showcase Next Generation Dial-up IP Services.

ANDOVER, Mass.--(BUSINESS WIRE)--June 2, 1999--

Expanded coverage, high-availability modem access and Web-based

tools help ISPs to add and support subscribers nationwide

NaviNet, Inc., a majority-owned subsidiary of CMGI, Inc., will showcase its outsourced dial-up IP network services for ISPs at SUPERCOMM '99. Based upon the NaviNet Technology Platform now rolling out nationwide, these network services allow ISPs to expand into new markets, improve their profitability, and increase customer satisfaction by providing cost-effective, high-availability modem connectivity to the Internet. Services to be showcased include GeoDial SP, the company's Internet access service; its Web-based network management tools; and its managed RADIUS user authentication service.

Nationwide Network Expansion

NaviNet is aggressively deploying its network nationwide and currently covers one third of the U.S. Internet population. "We're ahead of both our customer goals and our roll-out schedule for '99 and will cover more than 80% of online Internet users by year's end," said NaviNet CEO T.C. Browne. The company began its expansion in January of 1999.

NaviNet's network is built on the NaviNet Technology Platform, a unique network architecture that provides the best price/performance Internet access service in the industry - GeoDial SP. Jim Winkleman, NaviNet's CTO, notes that "The NaviNet Technology Platform avoids bandwidth bottlenecks both on the PSTN and at congested public peering points on the Internet. This virtually eliminates busy signals- the No. 1 complaint of end users."

GeoDial SP

NaviNet's flagship Internet access service, GeoDial SP, will be showcased at SUPERCOMM '99. This service allows ISPs to profitably add new subscribers in key areas of the country for as much as 50% less than its competitors charge.

Web-based Management Tools

As an enhancement to its GeoDial SP Internet access service, NaviNet will also be demonstrating its Web-based tools for network management. These tools allow NaviNet's ISP customers to more efficiently provide first-level online customer support to their end-users, thereby lowering their cost per subscriber. SUPERCOMM attendees will observe how, by simply logging onto NaviNet's fully secure, robust Web site, ISPs can retrieve detailed real-time and historic information, including network usage patterns, disconnect causes, user session length, number of lines in use, and current network conditions.

Managed RADIUS User Authentication Service

For ISPs who prefer to outsource their subscriber RADIUS server, NaviNet offers a fully-managed solution hosted in carrier-class data centers. ISPs who purchase this optional service manage their subscriber database in real-time through a Web-based interface.

In the booth

In their booth at SUPERCOMM, NaviNet will be running a video presentation that explains the benefits of the company's NaviNet Technology Platform and the service it enables - GeoDial SP. A separate kiosk will host the Web-tools demonstration. NaviNet will also have professionals available to consult with visitors on a wide range of issues including Internet connectivity, Service Level Agreements, end-user support, and coverage areas.

About NaviNet

Focused on ISPs who want to quickly expand their coverage, capacity and capabilities, NaviNet is an innovative Internet Access Provider offering cost-effective, high-availability national network services to ISPs. NaviNet's network services are based upon the NaviNet Technology Platform, a unique and innovative network architecture that provides the best price/performance ratio available for dial-up access. The elements of the NaviNet Technology Platform include a nationwide highspeed IP backbone, private transit Internet connectivity, the use of switch bypass technology, and the deployment of NaviPOPs that aggregate calls over a massive local-calling area.

More information about NaviNet is available by accessing http://www.navinet.net.