Experts123 might be a bit more popular than OSQA. We know about 1 link to it since March 2021 and only 1 link to OSQA. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
I'm looking for a guide about adding windows authentication support into a django app, particulary OSQA. Source: about 2 years ago
Try experts123.com (full disclosure - I once worked on the company that created it and the people who created it have a genuine passion for q&a - they chose to not gamify the platform even when I suggested they should for making it more mainstream). Source: over 2 years ago
Question2Answer - A Q&A site helps an online community to share knowledge.
Answeree - Answering your questions | The Expert Q&A Community
Stack Overflow - Community-based Q&A part of the Stack Exchange platform.
Wiki Answers - Answers.com: Wiki Q&A combined with free online dictionary, thesaurus, and encyclopedias.
Niko - Niko is an employee experience, empowerment, and engagement solution.
Quora - Quora is a place to gain and share knowledge. It's a platform to ask questions and connect with people who contribute unique insights and quality answers.