While the Internet contains many useful sources of data from legitimate sources, there are also many sites containing unreliable or misleading information. Electronic information can be easily altered. If you want legal materials, go to the issuing government or organization if possible. If you want a particular country's position on an issue, try their sites. If you are looking for statistics look carefully at the data source.
Most data is compiled from just a few sources, largely governmental.
For example, most US demographic or economic data comes from a handfull of government agencies. The data is then manipulated to produce various tabulations. Information produced by governmental organizations and advocacy groups is, by its very nature, an attempt to convince readers of the validity of a particular point of view.