Hm, not sure if it's okay to put this here ... but seeing as it's very specific to Vocabulary and Idioms I hope it's okay :)
As some of you know, I teach on EduFire (
http://www.edufire.com) which has a really useful classroom platform for studying languages online. Well this Saturday (Nov 22) and next (Nov 29) I'm teaching a FREE vocabulary class for English language learners. This is an hour lesson to expand your vocabulary with advanced (university level) words, idioms, a bit of slang, and regional differences (UK vs US English).
You will need to register with EduFire first but this is also FREE, so I hope to see many of you there either this Saturday or next :)
Space is limited, so if you want to come sign up right away!
And here's a brief explanation of how to use some parts of the EduFire classroom that might be useful if you've never used it before: