sending a text message from website?
once you become a cingular customer you can log into your account to send text messages to other cingular customers only....click the GO button next to your device on the myacccount home page and scroll down and on the right side you will see where you can send texts..
It's still possible. You just have to log into your account to do it now.
They did that to prevent spammers from abusing the service.