| Website | hudong.com |
| Employees | 550 |
| Founded | 2005 |
| TOTAL | $65M |
| FUNDING TOTAL | $65M |
| Venture Round, 8/11 Draper Fisher Jurvetson (DFJ) | $15M |
| Series C, 6/12 | $50M |
Hudong (formerly Hoodong, “Interactive Online”; Chinese: 互动在线, Hanyu Pinyin: Hùdòng Zàixiàn) is a for-profit social network in China, including the world’s largest Chinese encyclopedia/news website, but not free for re-use. It is China’s largest wiki site, using paid advertising, with over 5 million articles and more than 2.5 million volunteers, as of February 2011. However, Hudong is a news/neologism encyclopedia, and hence, it does not restrict articles to only long-term, sourced text with balanced point-of-view content. The contributors agree to release their writings with perpetual royalty-free license to publish their content, but it is not free for re-use on other websites.