English learning aids for Russian speakers

In the past also Russian students used my English teaching services.I know some sites geared to Russian speakers learning English that could be valuable to them: englishtips.org; englishmadesimple.com; lingvoforum.net englishspeak.com; homeenglish.ru; download-esl.com; engmatrix.com; ilearnwords.com; supremelearning.comIn addition to these sites, there are a lot of sites on English learning audios and videos. For Russian speakers there are also the following comprehensive English conversation books:1. Conversational English (by V. Voitenock, 1999, 480 pages, advanced Colloquial English)2. The English-Russian Dictionary of Everyday Phrases (by M. Dubrovin, 1993)3. A Manual of Russian and English Conversation (by Julius Cornet, 2009, 476 pages).