Speak Belarusian To Me
Free online beginners Belarusian course, in Russian (and maybe Belarusian). Includes information about the alphabet, grammar, texts, exercises, a dictionary, and downloadable lesson files. Entirely in Russian and Belarusian.
Free online searchable Belarussian/English/Polish/Russian/Ukrainian translating dictionary that you can help edit. Site also may have documents about Ukranian literature and grammar, but they're all in Ukranian. Site may have ads inappropriate for young Web surfers.