Several organisations, institutes, universities and teacher associations run various online courses in various areas of English language teaching and professional development of teachers. Here are some of the resources:
1) TESOL Leadership Course
TESOL runs Leadership Development courses many other courses for its members and some of them are free. Visit to TESOL website and other online course materials and avail the opportunities. http://tesol.org/s_tesol/seccss.asp?CID=2026&DID=12615
2) US Embassy and NELTA online Courses
US Embassy supports NELTA members to attend online courses in the US universities. The announcement of these courses are made on the NELTA web page and neltayahoogroups.
Please check them regularly and try to get involved in them.
You can also visit to the RELO page of the U.S. Embassy Nepal for the details.
3) Free E-mail English Courses for Learners and Teachers
Sounds interesting !!! You may want to try this site: http://esl.about.com/cs/onlinecourses/a/a_ecourses.htm