Lumina — 400+ Curated AI & Developer Tools, Free Discovery Platform

The largest Q&A community for programmers with over 20 million answered questions spanning every language and framework. Search results are deeply integrated into how developers debug, and well-formed questions earn reputation and badges. Its AI sibling stackoverflow.ai builds directly on this knowledge base.

Technology news aggregator run by Y Combinator where founders, engineers, and researchers discuss startups, programming, and computing. The comment threads are often more valuable than the articles, featuring insights from people who built the systems being discussed.

Inclusive blogging platform where developers publish tutorials, career advice, and project write-ups. Supports Markdown posting, series, tags, and a friendly comment culture, plus podcast episodes and job listings. Free to read and write with no paywall.

Personalized feed aggregating thousands of developer blogs, news sources, and discussions based on your interests. Available as a browser extension, web app, or mobile app so your dev reading list is always fresh. A great passive way to stay current with ecosystem news.

Invite-only link aggregation community focused on high-quality technical content about programming, systems, and security. Smaller and calmer than Hacker News, with strict topical moderation and thoughtful discussion threads.