How to Send a Free SMS From Australia to the USA

1. Send an SMS message to any recipient in the United States with Yahoo Messenger. Users from any location in the world can send free SMS messages to mobile phone subscribers in the USA, even if the subscriber does not use Yahoo Messenger. Open a message dialog, type in the recipient's phone number, enter the message text and then press 'Send.' The message will show up as a regular text message on the mobile phone.
2. Enter SMS messages directly in Google Voice to send free to any mobile subscriber in the United States. Select the 'Text' button from the top of the Google Voice page. Enter the phone number and then the message text. Click 'Send' when complete. You can send SMS messages to up to five recipients at a time using Google Voice.
3. Create a new SMS message in Windows Live Messenger. Hold the mouse cursor over the name of a contact from your address book contact list. Select 'Send text message' from the available choices on the pop-up menu, and type the message text. Press 'Enter' when finished to send the SMS message.
4. Use a free online SMS website to send your text to someone in the United States. Websites such as Text4Free, Txt2day, and SendSMSNow all allow you to enter in the phone number of the text recipient and a short message, and then send the text for free.