- Internet SMS Chat
- Free online short messaging service from SingTel Mobile. Includes a user guide and a frequently asked questions section.
- Nextel.com Two Way Messaging
- Instant online short message sending service for Nextel subscribers.
- OZSMS.com
- Offers free PC to mobile phone short messaging to subscribers in Australia.
- SMSGuys
- Sends SMS's to all three cellular providers of South Africa, powered by Mobile Internet Gateway, a niche company specializing in corporate SMS, premium SMS, and other MMS solutions.
- SprintPCS 2Way SMS
- Provides web-based text messaging to any Sprint customer. Includes a call back number sending feature.
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