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Hacker News is a social news website that caters to programmers and entrepreneurs, delivering content related to computer science and entrepreneurship.

4chan is a simple image-based bulletin board where anyone can post comments and share images. There are boards dedicated to a variety of topics, from Japanese animation and culture to videogames, music, and photography. Users do not need to register an account before participating in the community. Feel free to click on a board that interests you and jump right in!

Snapzu is basically reddit alternative. It is a bit better looking, and the community is rather small so far, but growing. Official description: Snapzu is a platform for web content creation, aggregation & discovery, where users like you help provide content and decide what goes, what stays and what stands out by using community approval.

AnyChan is a simple image-based bulletin board where anyone can post comments and share images. There are boards dedicated to a variety of topics, from Japanese animation and culture to videogames, music, technology and photography. Users do not need to register an account before participating in the community. Feel free to click on a board below that interests you and jump right in!

Community that helps you share unique insights and experiences.

Words.farm is a blogging platform where you can share your thoughts with the world. You can just start writing, publish a post and share it with your network.

Mewch is an English speaking realtime imageboard. Originally created for students on college campuses, this site can be used by anybody.

CornerHub is a social network. Create discussion topics, follow other users, share your updates, photos, videos and music. You can create the groups.

ForumPromotion.com; a bookmarking & social networking curation hub, but also the easiest way to discover new and interesting forums across the Web. Anyone can submit, vote up/down, and comment on links. The most trusted forum promotion platform & topic curation community. All The best message board threads, all in one place. 100% free!

Twincl is characterized by forum (including link sharing), Q&A, review and blog sites, using CommonMark as its writing format. Twincl features innovative Markdown editing, topic trees, voting/remarks, selected posts, senior authors, logarithmic scales, and more.