What interesting ideas exist to start practice data journalism?



Could you tell me please about some ideas, areas, domains, approaches where data journalism might be useful? If you know about that, could you tell me how and what kind of sources of information (urls, books and so on) I should investigate to extract necessary data? I want to find some specific problem (especially for Russia, because I am from here) and clarify it using methods of data journalism.

I need it to find myself in this profession and have more experience in this sphere. Your advice might be very helpful for me!


Thank you!