Send Free SMS Worldwide. Many Countries Included. No Registration. Send SMS instantly.

1stwap  
Send free sms text messages worldwide. You'll get limited free credits that would let you send sms to different mobile networks. Once you used up all your credits, you can buy more or just wait for it to replenish after some time. There are other features provided like being able to tract delivered messages. Registration required. A valid mobile number is needed to register so you could receive your activation code.

Bolt Blue Text Messaging
You can send SMS text messages from your PC to almost any mobile in the world. Register with Boltblue to receive 15 free text messages per month.

ICQ SMS
There are 2 ways to send free sms using your pc: sms via icq software and sms via icq website.
You can send messages from ICQ to cellular phones of 180 global networks, and receive their replies to your ICQ.
Registration is required to get an icq number.

Send SMS Now  
Send free SMS worldwide.

SMS.at
Get 5 SMS per month free of charge. Registration is required.

TellShare
A free text messaging service that allows its members to text message one person, or groups of people on their wireless devices.
Registration is required. You also need to have a valid mobile phone number to get the validation code.

Send Free SMS Worlwide. Registration Required. 32 SMS Free per month.

Send Unlimited Free SMS all over the world. No Registration Required.