It was my first acquaintance with these communities, even though I was registered in Livemocha long ago and have very positive impression of it, particularly I like the idea that native speakers correct your writing tasks, as I see it has some similarities with The Mixxer where I also have registered.

Likewise I enjoyed reading articles of EuroCALL, and just with opening an account on this site it gives you an access to various articles and texts.

I have looked up all the sites you provided in this Unit, and the last one I would like to talk is IATEFL talks videos in YouTube, they discuss some very curious subjects like pronunciation