Many marketing professionals inquire about the difference between Twitter and SMS Marketing, and which one is more effective. If you ask us the answer is both. We would also recommend adding Facebook, MySpace, YouTube, Flickr, blogging and other tools to complete your marketing arsenal. SMS Marketing and Twitter are similar as they both engage customers in communication, which is strictly spam free. You can use CRM pulled-based marketing, break thru the clutter and reach the customer by the phone or e-mail.