NGOs are independent organisations focused on particular issues, often working with government partners to provide advice and assistance, or campaigning governments to take action. They can be a great source of facts, figures and reports. These are just a few...
Government departments and agencies are an excellent source of information resources such as annual reports, budget papers, speeches, policy documents, legislation and statistical data.
See the following Goverment portals to start your search:
Think tanks, or policy institutes, are research centres that focus on particular issues such as social policy and national security. They are an excellent source for policy documents and reports, but keep in mind they can be biased towards a particular political ideology.