Foreign Language Digests
This site offers an invaluable bibliography, organized by subtopics, of language diversity, i.e., ESL, Special Populations, Bilingual Education, and Two-Way Immersion.
http://www.cal.org/topics/fl/fldigests.html
Foreign Languages
Electronic libraries in languages other than English
http://onlinebooks.library.upenn.edu/archives.html#foreign
iLoveLanguages
Searchable database of language resources
http://www.ilovelanguages.com/
Learning and teaching styles in foreign and second language education
Felder, R., and Henriques, E. (1995). Learning and teaching styles in foreign and second language education. Foreign Language Annals, 28(1), 21-31. Although this article focuses on language, its detailed, practical suggestions are valuable for all areas.
http://www.ncsu.edu/felder-public/Papers/FLAnnals.pdf
Multimedia Language Learning Lab
Donna Apgar, faculty member at Central Piedmont Community College in North Carolina, has created an interesting resource for students, travelers, and teachers.
http://cpcc.edu/langlab