Official Churches

Russian Orthodox Church Outside of Russia in Russian
Russian Orthodox Church Outside of Russia in English
Diocese of Chicago and Mid-America
Moscow Patriarchate

Monasteries

Hermitage of the Holy Cross
Holy Trinity Monastery
The Holy Mountain of Mount Athos
St. Anthony's Monastery & affiliated Monasteries

Seminaries

Holy Trinity Seminary
Orthodox Pastoral School

Orthodox Resources

Bishop Alexander's website
Information site of Sretensky Monastery in Russian
Informational site of Sretensky Monastery in English

You can find many good English articles here:

Orthodox Christian Information Center
OrthodoxWiki
Note: the articles above are produced without clerical oversight