http://www.minjust.ru/nko/fedspisok
This list contains some URLs that ISPs are supposed to block.
Most of those are either dead or not blocked in practice (it's really hard to force it on ISPs), but it might become reality one day.
Basically, to break the law you have to publish or distribute them, but I can access every url listed.
And now they want some random NGO to be compiling their own list of paedophile resources. They'll have all the control without much responsibility, hurray.