Late last year I attended a teaching seminar at Seinan University. A teacher named Ben Shearon gave a presentation about using online resources to practice English. One site he highly recommended was Elllo. I agree with him, it is a great site for students. You can listen to a range of people from all over the world talking about many different topics. There are also activities to go along with the audio. This is probably the best website I have found for students wanting to practice their listening skills. It is a lot of fun and it's very useful. If you use this site regularly I am sure your listening ability will improve.
If you plan to travel to a certain country or region of the world, why not use this website to practice listening to people from that region speaking English.
Follow this link ello.org to visit the website.
I have links to this and other websites on my Adults Learning Centre page.