Spoken Skills is an online English teaching program that has a lot of parts, many which you have to register (and I think pay) for. I have to admit I haven’t taken much time to look around the site.
I did, however, find a nice page that has a number of listening activities that students can follow-up with by using a mike and speak what they’ve heard. They can then play it back and compare it to the original. It’s simple and effective.
I really like this site a lot, and will be placing it on my upcoming “The Best Sites For Learning English Pronunciation.” I’ve picked the top ten sites for that list, and just have to get around to ranking them and writing the post.