I'd like to tell you some information about former Soviet Union. So I can tsay that the most popular system for money transfer is Webmoney System
http://www.wmtransfer.com/ To use the system, you have to downloadf a client to your pc, called Webmoney Keeper. You can have wallets in several kinds of currencies, but most popular are US dollars (WMZ), Euro (WME), Russian Ruble (WMR) and Ukrainian Hryvnya (WMU), for any transaction the system takes a commision of 0.8% of a sum bat not less than 0.01WM. And the commision cannot exeed
WMZ WME WMR WMU
50 50 1500 250
So this system is really very easy to use.
Some more about webmoney:
https://en.wikipedia.org/wiki/WebMoneyOne more point why Paypal and Moneybookers are still not popular in the CIS countries is that Some countries were blocked for usage of thiese systems. And now, Ukrainian citizens still have some limitations for using these systems.