Looking for a new job? Check these sites:
If you want to simulate your personal income tax, use the HK IRD official site. Salary tax computation in HK is extremelly simple. All you will have to do is select your marital status, fill your annual income in HKD and selects number of dependant children.
Find here a list of all Double Taxation Agreements signed with Hong Kong.
Link to the European Commission with the latest European Income Tax Rates.
Link to to OECD site.