http://vocaroo.com/

http://vocaroo.com/ is a site where you can record your voice and send it to your friends via a http link. If you want to send them some secret coded message or just yell "EFF YOU!" although most people use it to explain stuff and post them on their websites or sing to other creeps as if that counts as a social life. I would suggest adding this site to your favorites because you never know when you might need it.