DokuWiki - DokuWiki is a simple to use and highly versatile Open Source wiki software that doesn't require a database.
ShoutOUT - All in one business texting tool to send personalized alerts, promotions, reminders, short links and marketing campaigns, for any SMEs (hotels, restaurants, education, non profits, Woocommerce, banks, healthcare, agencies, supermarkets, weddings)
Banana Dance Wiki/CMS - Free open source software combining the best of wiki and CMS with community building-features.
Trumpia - SMS Marketing and Marketing Automation software for Mass SMS, internal communications & emergency alerts. #1 Text Messaging Service used by Fortune 500s.
Pepperminty Wiki - An entire wiki in a single PHP file. Intended for small - medium sized wikis.
Clickatell - Simple, reliable mobile messaging cloud.