This article allows Jason West to publicise his (commercial) online ESL courses, but this is the quote that caught my eye:
"If you build up a group of ELPers (we call them English Language Philanthropists), say ten to fifteen around the world in different time zones there will always be someone friendly to practice with online when you have done a lesson. Or just have three ELPers you have regular practice times with each week."
Read more: http://digitaljournal.com/article/307937#ixzz29OMQVTrv
Via Shona Whyte