SocialMate App - SocialMate is #1 Free Comment Growth Tool with many other features for Facebook and Instagram Automation - Chatbot, E-commerce and More.
Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
PencilTree - Video-based wiki where subjects are hierarchically organized
HelpDocs - Educate your users with a super simple knowledge base that’s built for teams just like yours.
Spaces by Google - Small group sharing for everything in life
phpMyFAQ - phpMyFAQ is a world’s most popular mobile-friendly, feature-rich and open-sources FAQ software that uses PHP 5.