Thought Plan - Super convenient tool to write down your thoughts & ideas
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.
Taky - Write ideas down as fast as they come up.
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.
Writtens - Quora for writers, ask questions and get advice.
Find Better Questions - Answer Quora’s best questions & get traffic