This excerpt taken from the SOHU 10-K filed Feb 26, 2009.
We depend on China Unicom, China Telecom and CERNET for telecommunications services, and any interruption in these services may result in severe disruptions to our business.
Although private Internet service providers exist in China, almost all access to the Internet is maintained through China Unicom, China Telecom and CERNET, under the administrative control and regulatory supervision of the MIIT. We rely on this infrastructure and China Unicom, China Telecom and CERNET to provide data communications capacity primarily through local telecommunications lines. Although the government has announced aggressive plans to develop the national information infrastructure, this infrastructure may not be developed and the Internet infrastructure in China may not be able to support the continued growth of Internet usage. In addition, we will have no access to alternative networks and services, on a timely basis if at all, in the event of any infrastructure disruption or failure.
We have signed Bandwidth Provision and Server Hosting Agreements with China Unicom, China Telecom and CERNET. Under these agreements, we established four main service provision centers to maintain most of our servers in Beijing. However, as there are limited telecommunication infrastructure service providers, we may not be able to lease additional bandwidth on acceptable terms, on a timely basis, or at all. If we are not able to lease additional bandwidth, the development of our business can be affected.