China, already the world leader in cellphone use, has surpassed the USA as the No. 1 nation in Internet users. The number of Chinese on the Internet hit more than 220 million as of February, according to estimates from official Chinese statistics by the Beijing-based research group BDA China. The government is likely to confirm the leap at its half-yearly report in July.The longtime Internet leader, the USA, which founded and developed the network of computers, had 216 million users at the end of 2007, according to Nielsen/NetRatings. The percentage of American users — 71% — still exceeds China's 17%. China has 1.3 billion people, compared with nearly 304 million in the USA. At the end of 2007, China's Internet users reached 210 million, a jump of 53% from the previous year, says Zhang Shanshan, media director for the China Internet Network Information Center, which gathers statistics for the Ministry of Information Industry. Clark says the rapid growth is powered in part by China's economic boom. While the government "continues to filter the Net and encourage self-censorship, it also has a mandate to promote cheaper technology and the knowledge economy."