In today's podcast, Cambridge David recommends a very good website for improving your listening ability. Elllo.org allows you to listen to speakers from different countries using English, and at the end you can read the script and do practice exercises to help check your understanding. Best of all, it's absolutely free.
*please note that I'm not paid anything from elllo.org - I'm purely recommending it because I believe in sharing good learning tools, wherever we may find them. What are your favourite language learning tools (apart from italki)? Please let me know, and I'll pass your recommendations onto other listeners.