Top 20 products relevant to Knowledge Sharing, Forums, and Social Networks

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.

Stack Exchange is a fast-growing network of 84 [and counting] question and answer sites on diverse...

Super User, part of https://alternativeto.

AnyChan is a simple image-based bulletin board where anyone can post comments and share images.

Get Up Genie mission is to share and grow the world’s knowledge.

Open-source Q&A website.

Open Source

a simple image board alternative to 4chan small but still a nice community with much more rules...

Spiritual successor of Krautchan.

An android app for questions and answers with group discussion. You can ask questions and answer questions as of your wish and need. Also, you can discuss something with others in the group chat.

Wizardchan is a Japanese-inspired imageboard for male virgins to share their thoughts and discuss their interests and lifestyle as a virgin.

Summarize anything.

Development and Education & Reference.

I have solved is Question and Answer website.

A self-hosted Quora like web application written in Go.

Open Source

Request and reward objective answers from anonymous users without vested interest.

Scored is the community platform which aims to keep politics and social issues separate.

In May 2017, askalo was relaunched as a free classifieds search engine for cars, jobs and real...

Internet drama forum dedicated to discussions on eccentric individuals online.

An imageboard website with user-created boards moderated by its creator.

Discussion forum alternative to Reddit.