The Grammar Cracker "cracks open" the door to the world of English-learning by presenting the English grammar rules and practices in a very clear manner. Its format is logical: it is organized in order of increasing size and scope, from letters to words to sentences to paragraphs to essays, reports, books, etc.
The Progressive in Modern English: A Corpus-Based Study of Grammaticalization and Related Changes
This book constitutes the first full-length diachronic treatment of the English progressive from Old English to Present-day English, focusing on the crucial phase of its grammaticalization between the 17th and 20th centuries.
Very interesting and useful newspaper for those who teach and study English. It's mainly in English so it will be useful not only for Russian-speakers.
Besides in the archive you'll find some extra materials on the topic of the issue
Spotlight 2012-02 - Das Magazin für EnglischSpotlight is a magazine in German and English. It is published by the Spotlight publishing company. The first issue was made in 1981. It comes out monthly and has themes like politics and travelling in the English language. The articles are in simple English and should help people to understand the language. The magazine is written for Germans. Translations of difficult English words into German are found in the magazine.