I have 3 invitations available for Joost. If you want one just let me know.
I came across this Web 2.0 application called Jott. You call a number and leave up to a 30 second audio message. This message then gets transcribed and sent to an e-mail address of your choice. All messages also go to a site where, once you sign in, you can see and hear the audio message. This is perfect for those moments when something comes to mind that it is impossible to write down (like when you are driving your car). But there is much more. You need to visit the site.