http://www.multitran.ru/
One of the best online translators.

http://babelfish.yahoo.com/
Roughly translate blocks of text from different languages to Russian

http://slovari.yandex.ru/?st_translate=1
translate words into Russian from most of the common West European languages, includes varied and sophisticated vocabulary translations, as well as professional (e.g. medicine) terminology

http://www.proz.com/ if you need some serious high quality translation into Russian, you can hire many professional translators here