Duuit! allows you to post content from a number of services and protocols.
Here is a few examples of posts from different places.
xmpp (just use instant messaging client with Duuit.com and you can login with the same username/password and send a message to whatsup@duuit.com with the body: post <message>) replace <message> with what you have to say.
The above is the default if your using the website.