A few days ago, on another blog, I wrote about qtags and explained how the service worked.
Here's an excerpt:
Basically, QTags is a simple tag that an advertiser can include in any print, broadcast, outdoor or display advertising.
When a consumer wants to, remember a special offer, learn more about the product or simply be reminded to follow up, he or she can use their mobile phone and text the tag to QTags.
Then, at the consumer's convenience, they can log into the QTags website and see all the tags they've texted, complete with links to the product or service's website.
You can read the full post here.