If you are a regular YahooMail user, you might have observed the new interface. The trick involves making use of this new interface. There is no registration, you only need two things: a free Yahoo Mail account and mobile phone number where you want to send the free SMS. To get started, you need to switch from classic Yahoo Mail to new Yahoo Mail – here is the simple procedure:
How to send Free SMS from Yahoo Mail?
Login into Yahoo Mail & click “Try the New Yahoo Mail” link at top right.
Your Yahoo Mail inbox will load with a new look. Now press t key.
Select your country and form to send text message will load in your Yahoo Mail inbox.
Now enter the mobile phone number (without country code) and your SMS text in the “New Text Message” form. Click the send button and your SMS recipient should receive the SMS within few seconds. Note: This trick has been tested to work in the following countries – USA, Canada, India, Philippines, Indonesia, Malaysia and Vietnam. Let us all know how you found this service. [via]tothepc