Text messages continue to be an incredible means of marketing but it's not too sexy so there's not typically a lot of noise about it. There should be. SMS marketing (with MMS becoming mainstream) continues to drive incredible results. If you're a retailer trying to drive foot traffic, you'll find sending a discount or special via text message incredibly effective.
That said, over the years companies have continued to fine-tune their SMS marketing efforts and have identified what works – and what doesn't when it comes to this mobile marketing strategy. The folks at TextMarketer have put together this fantastic infographic on the Seven Deadly Sins of Mobile Marketing as it refers to SMS.
Here's a video version of the infographic: