Here we get coverage of the genuine support:
@3:30: “They didn’t pay us our salary . . . the money went to the Ukrainian Army” — WTF?
According to earlier polls, it’s about 30%.
The pro Russian sentiment died down after the horrific violence of pro Russian protests in mid-March (http://romaninukraine.com/eye-witness-account-of-donetsk-violence-of-a-few-days-ago/), but it seems to be recovering.
Here’s a good article discussing the dip in support: http://www.washingtonpost.com/world/pro-russian-protests-in-eastern-ukraines-donetsk-region-diminish/2014/04/03/f1bd1fe0-db2e-4e23-9ceb-cc2f645ae7c5_story.html