Government departments, institutes, clearinghouses, professional associations and other organisations can be an excellent source of information.
Freely available material can include
A 'clearinghouse' is an organisation that provides research, data and other information relating to a particular issues in order to raise awareness and facilitate discussion. This information can support a range of people and organisations including activists, service providers, researchers and government agencies.
It is important to evaluate all the information you find online. When evaluating a website ask yourself:
For further help see the short Library video You be the judge: learn to evaluate.