starmsg.com
Starmsg.com is a messaging service that allows you to send text SMS messages from your PC to mobile phones all over the world. This is the most convenient way to send and receive text SMS messages from your PC.
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eusms.net
eusms.net is a free software for Microsoft Windows to send text messages (SMS) via internet. You just pay the messages you send. You can even set the delivery time, send Flash-SMS or anonymous messages.