Stack Overflow - Community-based Q&A part of the Stack Exchange platform.
Clinked - White-label Client and Team Workspace
The Answer Bank - The Answer Bank is the UK’s leading question-and-answer site.
Slack - A messaging app for teams who see through the Earth!
Askalot - Askalot is a next generation CQA (Community Question and Answer) system.
SuiteDash - Integrated & Automated Client Portal Software : Secure Web Based Client or Customer Login Portals : White Label SaaS Project Management System, Online CRM Tool, Browser Based Invoicing & Recurring Billing, Time Tracker, Client File Upload, , All in …