Respond Flow - The Mailchimp of SMS
Maker Swipe File - 100+ high-performing Tweets to help you grow your audience
BuellerBot - Online Meetings Automated - Respond, Even When You're Not There.
Narrow - Narrow helps you build a targeted audience and increase your influence on twitter.
Text Groove - Text enable your existing business landline, VoIP, or toll free phone number and connect with your customers in a whole new way. Try Text Groove for free.
Tweetflick - Save, organize & find Tweets to get the most out of Twitter