Sms Broadcast is a pretty good sms sending and receiving service. Their virtual numbers are only £12 a year which is a bargain, and enables you to receive sms on your own dedicated number. The prices per sms are also pretty reasonable, and support is quick to get back to you when you have a problem. The only critisisms I would have is that you can't get delivery reports by email, only message sent confirmations, and sometimes your sms's to genuine numbers do fail, not sure why this is, but when I was texting a friend who was having problems with his phone, instead of the messages waiting to be delivered, they were reported as failed.