SMS Text Message
SMS Text Message is a plugin for WordPress to allow blog owners to update their readership via SMS.
A user comes to a site and wishes to be updated (daily, weekly, monthly, etc) via SMS Text Messaging. The user enters their 10 digit phone number on a sidebar widget. The number is then added to a database. Then every so often, the site admin can send an update via text about what is new on the site etc.
Recommended Reading
Some resources you may find helpful:
Semper Fi Web Design is a SDVOSB (Service Disabled Veteran Owned Small Business)