Veronica Khokhlova has compiled an amazing roundup of the English language Russian blogosphere, complete with an introductory paragraph for each blog:
Everyone in Russia seems to have a LiveJournal, and that huge, cacophonous Russian-language playground (and, often, a battleground) dwarfs what would otherwise be considered a pretty sizable English-language blogosphere. So sizable, in fact, that I have to issue this disclaimer: the annotated Russia blogroll below is, most likely, far from being exhaustive – even though compiling it has totally exhausted me.
It looks pretty comprehensive to me.