Did you know that you can now send free text messages (SMS) to your friends directly from your Gmail account?
Log into your Gmail account. In the Send SMSbox above Chat, enter the phone number you want to send a SMS to.
In the dialog box, enter Contact name of the SMS recipient and check that country and phone number are correct. Then, click Save.
Type your message in the chat window and hit Enter.
Your message will be sent to the phone number you entered.