
8 trillion SMS were sent last year by the 6 billion mobile-phone users world-wide! SMS is the world’s biggest form of written communication, in terms of users. The first SMS was “Merry Christmas” sent in December 1992 by the British engineer Neil Papworth from his computer.
witSoft SMS is a free SMS application which provides your computer with the GSM short messaging facility. It is always available from a system tray. In several mouse clicks, you can send a short message to any mobile phone in the world or view the incoming messages.

Chikka Text Messenger lets you send free text messages to mobile subscribers in the Philippines from wherever you are in the world. Your friends can also reply to your Chikka messages instantly, either from their mobile phones or downloadable messenger clients.
SMSLoop offer free SMS service to registered users, so you can send free SMS with100 characters long, within India to all your near and dear ones. Advertisers are allowed to append a contextual advertisement to your SMS, making up the rest of the 60 character.

SMS440 is free SMS service that provides a length of 440 characters in each SMS for the user. You can send unlimited free sms to any of your friends, relatives or whomever you want. One more unique feature is that you can get delivery reports once the message is sent.