Blog entries like [Liu Xiaoyuan's], which mused on sensitive topics such as the death penalty, corruption and legal reform, are often automatically rejected if they trigger a keyword filter. Sometimes, they're deleted by human censors employed by Internet companies. In the lead-up to the sensitive Communist Party Congress..., authorities have been casting an even wider net than usual in their search for Web content they deem to be politically threatening or potentially destabilizing... Major Internet portals like Sohu.com Inc. and Sina Corp. employ their own censors to make sure nothing runs afoul of government restrictions... An employee with the Zitian Internet Data Center in...Luoyang...said interactive sites, such as bulletin boards and blogs, were closed until after the congress...on orders from state-run China Telecom...