Global Language Education Services was created by the founder of the International Center for FOCAL SKILLS to provide online placement testing, teacher training, and consulting services in support of natural approaches to language learning, particularly FOCAL SKILLS.
For much more information about the theory and practice of natural approaches to language education, see books and articles by Stephen D. Krashen. Many of these articles and books can be downloaded free.
The International Journal of Foreign Language Teaching is "a free on-line quarterly journal dedicated to communicating research, articles and helpful information regarding language acquisition to support teachers as they endeavor to create fluent, multilingual students."