http://www.gramota.ru/spravka/letters/?rub=n_mestoimenie

Hi, I can give you the links that will be interesting and helpful to you and other guys who learn Russian. The 1st one is a Free Russian Marathon, you need to subscribe and you'll receive interesting facts about Russia and Russian language for 2 weeks after the Marathon begins. The 2nd link is a blog about Russia which is written by Russians and so does not bear any wrong stereotypical information. The 3rd link is a page in Facebook that you can follow. http://www.learning-to-know.com/#!marathon/cx9x. http://www.learningtoknowrussian.com/ https://www.facebook.com/LearningToKnow