Independent Communities for Forecasters

FAQ

What are Prediction Markets independent communities?

Online communities for forecasting future events, debating prediction markets, and sharpening your probabilistic thinking skills. This page focuses on communities hosted on Independent Platforms, so you can compare their size, features, reviews, and access requirements in one place.

What are the most popular prediction markets independent communities on Hive Index?

Metaculus, Polymarket, Long Now Foundation, and Foresight Institute Forum are among the most popular prediction markets independent communities in the Hive Index directory of communities, based on visitor interest on Hive Index. This is not a universal quality score. You can also compare listings by review scores, member counts, and listing age on Hive Index.

Are prediction markets independent communities free to join?

All 11 listings in the Hive Index directory of communities are marked as free to join. Popular examples include Metaculus, Polymarket, Long Now Foundation, and Foresight Institute Forum. Access rules can still change on the community side.

What features do these independent communities include?

Forum is the most common (100%). Others that show up often include live chat and online/offline events. Use feature filters on Hive Index to narrow results.

How large are prediction markets independent communities?

Hive Index lists 11 prediction markets independent communities in the Hive Index directory of communities. The largest include PredictIt (50K members), Polymarket (30K members), and LessWrong (25K members). Median reported size is about 20K members (7 listings with member data). We only have a handful of listings so far, so treat these numbers as directional.

How do I join a Prediction Markets community on Independent Platforms?

Browse listings in the Hive Index directory of communities, open a community that fits your needs, and follow its join link to Independent Platforms. Some communities may require an application or paid membership, which is shown on the listing when known.

How do I grow my Prediction Markets community on Independent Platforms?

List your Prediction Markets community on Independent Platforms for free on Hive Index to reach people already searching for Prediction Markets independent communities. Paid promotion can feature your community more prominently across relevant pages and send more qualified visitors to your listing.

How does Hive Index collect and rank listings?

Listings are submitted by community builders and researchers, reviewed for topic relevance, and updated with platform, feature, member, review, and traffic data where available. Member counts are approximate. Popular reflects visitor interest in the Hive Index directory of communities, with richer profiles breaking ties. Ratings, Largest, and Newest use review scores, reported member counts, and listing age instead. These listings in the Hive Index directory of communities were last updated 10/14/2026.