Hmm....not to sure about hosting it, never did before but depending on what it is it can be posted in the
Music Forum on BTS, or whatever kind of clip it is. If you can't find a specific forum try
General Chit Chat.
I have been trying to find out how you would go about hosting a sound clip, but no luck so far.
What you could try though, is make a thread in the Computer Help forum asking how to do it.
There is a lot of computer savvy people who will probably be able to help you.