The ELT Journal, from The Oxford Journals, is a very nice collection of articles that teachers of English Language Learners would find useful. The collection, titled Key Concepts In ELT, is described this way on the top of the webpage:
‘Key Concepts in ELT’ is a feature of the Journal that aims to assist readers to develop an appreciation of central ideas in ELT, and to approach the content of articles from a perspective informed by current debate on aspects of theory and practice.
The list given below is an up-to-date guide to all ‘Key Concepts’ that have been published in the Journal. The list contains links to the original articles, which are available to download free of charge (PDF file).
I’m adding the link to both The Best Resource Sites For ESL/EFL Teachers and to The Best Ways To Keep-Up With Current ELL/ESL/EFL News & Research.