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SMS

United Kingdom
CBFSMS.com Absolutely free, reliable and fast service.
BoltBlue Absolutely free, reliable and fast service.
SMSLynx Absolutely free, reliable and fast service. The only restriction is that you must send only one SMS per session.
Fonetastic Registration is required.
Europe
BoltBLue Absolutely free, reliable and fast service.
Worldwide
Send SMS Now Free SMS to the entire world. Not tested yet.
AASMA Free SMS to U.S.A and Canada. Not tested yet.
SMSFree Free SMS to South Africa. Not tested yet.
Tamil Ringtones Free SMS to India. Not tested yet.
BoltBlue Free SMS to USA and Canada. Not tested yet.