For example what tools one can use to research certain country, to get scientific understanding of certain country and its features (geographical, social, environmental etc). Not just opinions from Internet.

For example what tools one can use to research certain country, to get scientific understanding of certain country and its features (geographical, social, environmental etc). Not just opinions from Internet.Not everything on the internet is opinions. Quite a lot of authoritative information is online. The existing search engines work well enough, it's just up to you to determine how authoritative any document is.

Geographical information is generally pretty straightforward because it's not very controversial. When you get into "social features" you're obviously going to find controversy, and determining how "scientific" the data you find is will depend on your own skills and standards. This is no different from the old days when the information was on paper or gathered orally.

For example what tools one can use to research certain country, to get scientific understanding of certain country and its features (geographical, social, environmental etc). Not just opinions from Internet.

Ask Dr. Google :D

But i want to categorize all kinds of tools i can use for research, e.g. Statistics, Geography, Economy, Crimes, what exactly should i look for if i want to know all details of certain country?

Can someone help me build this list?

CIA factbook is pretty decent....Or just use Wikipedia...