You know, this is actually a really astute inquiry. Russia was at the avant garde of internet marketing until the early 2000's when their major spammers (Kushnir, Tolstokozhev, etc) were murdered in presumably (non-spam)-related incidents. The fact is, the Russians are some of the most technologically inclined peoples on Earth - AND had earliest access to the interwebz, and thusly horded thousands (if not millions) of IPs and blocks, etc, from which to send penis pill emails and make (literal) killings.
However, this market is both growing and robust, and there is a fortune to be had. . .if there is a way to infiltrate. I do know that Adlabs, Ogava, Ruvza are some pretty large networks in Russia but I have YET to deal with them personally, though I would love to. . .my guess is that they keep things pretty insulated due to the negative stigmas that have come from their previous spam endeavors, but if you can get into the space - which I'm sure you can, just utilize some of those sweet google 'skillz' - you can make it profitable.
Ev