SMS marketing is an effective strategy.

You can do it to get new customers and do it to keep your existing customers loyal to to keep them as active customers longer.

Here's a link to one of the companies that provide the sms service for broadcasting out sms messages.

My client uses them so I know they are good.

http://sms-tech.com.au/index.php

However like any good business owner, do your research and cost/benefit analysis before you choose the right provider for you.