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.
Fishoal - Fishoal is the next-generation Q&A platform that helps anyone who needs help to find validated answers by connecting people to certified experts that can help.
Find Better Questions - Answer Quora’s best questions & get traffic
YAM - Video Q&A platform where you can get paid to ask or answer questions.
Q-Stats - Get free marketing insights for every question on Quora.
Questionwave - The easiest way to take questions from your audience.