Both the English main site of Ziddu and the Chinese version of Ziddu are free online hard drives under Hong Kong's Globe7, offering unlimited storage space, with file uploads restricted to 200MB or less per upload via web (no plugin or software installation required), and there are no restrictions on file types for uploads. However, the server for the English main site of Ziddu is located in the UK, which makes it slower than the Chinese version of Ziddu. So why does Baby秀 still want to introduce it? Because Ziddu’s main site offers advertising commissions in US dollars! If you earn 10 Hong Kong dollars on the Chinese version of Ziddu, you can earn 10 US dollars on the main site of Ziddu, as there is a sevenfold exchange rate difference between Hong Kong dollars and US dollars!