I would like to second Andreiko's vote of thanks! I'm a newbie and have only just learned what an RSS feed is, but I'm thrilled to be able to load them onto my new ereader!
I would also like some Russian language news feeds please, the general news site that Andreiko recommends looks good. I would also like a science news site. Maybe
http://www.gazeta.ru/science/ or
http://www.nkj.ru/?
Once again many thanks!