Do you want to send free SMS worldwide but does not have the phone credits to do it? Well I just found a list of Free SMS service that can send your messages worldwide.
sendSMSnow.com - register and receive replies from this free SMS service.
Free SMS Mobi - free SMS service worldwide. Server sometimes gets overwhelmed by traffic.
SMS Texter - send unlimited free SMS worldwide
e-Free SMS - might experience a few minutes delay in delivery of free SMS
Fido - you need to register. free SMS within Canada only.