You can take a look at my twitter list at https://twitter.com/mtrimpe/lists/ukraine for more information (just ignore the EastOfBrussels, UkraineInEurope and Opinieleiders; they're pro-West propagandists but still find some good stuff occasionally.)

Shaun Walker from Guardian, who's been the most thorough reporter so far, is working on one too (https://twitter.com/shaunwalker7/status/440865355767234560) which will probably be the best source of info on it.