If you are logged in to livejournal, that information can be shared with third parties without your consent through OpenID. Right now livejournal.ru and kommersant.ru are doing it.
Have not found a way to disable it, they are using
http://www.livejournal.com/openid/server.bml?openid.mode=checkid_immediate and livejournal is giving out my auth info without asking...
Update: http://livejournal.com/openid/options.bml has a list of web sites you have approved. kommersant.ru and livejournal.ru are not on the list for me. The whole thing is a side effect of SUP.com / LiveJournal deal, where the rights to service russian part of livejournal were given to a russian company. If you have livejournal account, sign into it and go to livejournal.ru and you will see your name in the top right corner. kommersant.ru has a deal with SUP / livejournal.ru to render comments.
That means that even when you are not in russia you can be tracked by a moscow based company as you visit sites they have a deal with.