I started to make this site in 2008. I have my own English conversation school. I noticed many students biggest problem with conversation was listening. If listening is a problem, conversation is much more difficult or even impossible.
On top of that, I was coaching my students to speak English, not to hear English. If we did listening practice, they were not getting what they paid me for! Plus, they could practice listening at home, for a much more reasonable cost. And listening practice helped them, and it will help you, to speak better.
But they did not have good listening materials.
I made this site to fill that void.
ELW helps you practice targetted listening. Not general listening. Not extensive listening. You choose your target, and practice listening to it until you can recognize it easily. You can do that here.