Here's a selection of Russian dating sites sorted by country. While many dating sites concentrate on the Russian dating niche, others have chosen to specialise in a particular country only.
For Ukrainian ladies, the Ukraine Date website is worth a look. This site is popular with Ukrainian women who have internet access at home or at work, and want to look for a husband themselves. Many ladies like to use a marriage agency to help them. One of the largest operators in the Russian mail order brides industry is A Foreign Affair. Check out their Ukraine Singles website if you want to see the ladies they have registered with their Ukrainian marriage agencies.
If you prefer Belarus women then a good Belarus dating site with a great reputation is A Belarus Bride.