If you're local to the area, we can help. Check us out at
www.bannedpromotions.com
Also, for other sites (Soundclick is a good one btw) go to Google and type in words like 'upload your music' and 'submit mp3s'....things like that, and you'll find a ton of artist sites.
Some others....
www.isound.com (highly recommended-you can have your own ringtones)
www.artistlaunch.com
www.collegemusicradio.com
www.arkade.com
www.acidplanet.com
www.acmenoise.com
www.artistopia.com
Also, you might try to search in Google for "list of websites to upload your music" or something like that, and find one website that lists a bunch of others.