In her Sunday, November 25 post she made reference to the Wikipedia page of Alex Krakovsky -
WIKIPEDIA ALEX KRAKOVSKY. The site is in the Russian language but can be translated using GoogleTranslate.
Included on this site are links to Ukraine revision lists, metric books, revision lists and census lists of Jews living in various areas of 18th, 19th and 20th century Ukraine.
This site is a treasure for Jewish genealogists researching family in Ukraine.
Most of the archives are in Russian Cyrillic.
I've included images of the cover and a few pages from the List of voters of Jews in Ekaterinoslav and Ekaterinoslav district in the 4th State Duma 1912//DADPO as examples.
