Zshare

Good option for quick online file-sharing would most likely be zShare.

You can upload files up to 250 megs, and it immediately gives you a URL for sharing the download to the world. This is probably the best service for easy file-sharing. The only problem is that you do not get an account so their is no way to keep track of all your uploaded files unless you write all the URL's down. 

You can share files, music, video, and audio. Whatever you want to share to the world can be processed with zShare

Overall it is great for quick sharing, not for long term.