ESL etc.

TEFL China - A collection of three listservs dedicated to teaching English in China. One focuses on teaching, one on jobs and one on life in general.

TESL-L - The main list has over 30,000 subscribers. There are also sublists dedicated to CALL, IEPs, jobs, young learners and ESP. Archives of each list are also available to subscribers.

Wikigogy - A community website where teachers of English as a second or foreign language can develop and share their EFL & ESL lesson plans and teaching practice. I haven’t looked at this one too much yet. It seems pretty new, but the activities seem well outlined.