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.
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starmsg.com 

Starmsg.com is a freeware that allows you to send text sms messages from your PC to mobile phones all over the world. You can set the delivery time for text messages, send Flash SMS or anonymous text messages. Universal charges apply.
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@SMS personal Outlook 

Extended SMS Add-in for Microsoft ® Outlook in 2000 / XP / 2003 with additional functions for the professional use. Ideal as a communication interface of smaller enterprises with external representatives. Light version also available for 55$.
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SMS Wizard LITE 

SMS Wizard is the ultimate software solution for sending short messages (SMS) via Internet or mobile phone connected to your PC.
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MOBILedit! 

MOBILedit! is a unique modular program, which allows you to control your mobile phone from the PC via Bluetooth, IrDA or cable. You can easily dial, send SMS's, receive calls, organize contacts, play games, synch with Outlook, download photos, MP3...
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MagicMessage 

Send and receive SMS text messages from your PC to mobile phones. It turns your computer into a mobile phone able to send and receive text messages. Long text messages supported. Fast, reliable service. Simple message pricing and software.
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