TextMarks - Welcome - Make information accessible from any cell phone - via text messages. Coordinate Activities. Express Yourself!
Mobile Text, Instant Message, Email, and Mobile Keyword: All-In-One Marketing by Trumpia
StudyBoost.com
Group text messaging service for SMS alerts from RainedOut | RainedOut™
Moving at the Speed of Creativity - Use a Google Docs Spreadsheet to Send Text Message Alerts to Students
SMS Marketing - Mass Text Messaging - Business Text service - MMS Messaging
13 SMS Text Messaging Services for Marketing in the Mobile Age
Our Five Favorite SMS Marketing Service Providers | SMS Marketing Reviews & Guides
Flocknote | Simple Email and Text Messaging for Groups