🧵 Community Hacker News Y Combinator's tech forum. Signal-to-noise ratio: high. 🧵 Community Lobsters HN but curated harder. CS & systems focus. 🧵 Community Reddit Where the internet goes to argue. Still useful. 🧵 Community 4chan The original anonymous imageboard. Unfiltered. 🧵 Community Slashdot News for nerds. Stuff that matters. Est. 1997. 🧵 Community Tildes Invite-only antidote to Reddit's chaos. 🤖 AI & Claude Claude The best AI, from Anthropic. This is where it lives. 🤖 AI & Claude CCA Study Platform CCA-F exam prep. 60 MCQs, AI coach, progress tracking. 🤖 AI & Claude LIAI.us AI consulting & services. LIBCSYSTEMS LLC. 🤖 AI & Claude Anthropic Safety-first AI research. The people who built Claude. 🤖 AI & Claude Simon Willison Best LLM writing on the internet. No hype, just signal. 🤖 AI & Claude Hugging Face Open-source ML models, datasets, and Spaces. 🤖 AI & Claude Ollama Run LLMs locally. Privacy-first AI on your own hardware. 🤖 AI & Claude Latent Space Podcast + newsletter for AI engineers and builders. 🕶️ Underground 2600 The Hacker Quarterly. Still printing since 1984. 🕶️ Underground DEF CON The world's largest underground hacking conference. 🕶️ Underground Black Hat Where the pros present. Briefings worth reading. 🕶️ Underground 404 Media Tech journalism by the team that built VICE Motherboard. 🕶️ Underground Boing Boing A directory of wonderful things. Est. 1988. 🕶️ Underground Techdirt IP law, copyright, and tech policy. Indispensable. 🕶️ Underground Cypherpunks Privacy through mathematics. The OGs. 🕶️ Underground HOPE Hackers On Planet Earth. NYC conference since 1994. 🔐 Security EFF Digital rights since 1990. The frontline. 🔐 Security Tor Project Anonymity online. Because it matters. 🔐 Security Privacy Guides The definitive guide to modern privacy tools. 🔐 Security Citizen Lab Surveillance research. Governments hate this site. 🔐 Security OSINT Framework Every OSINT tool, organized. Bookmark it. 🔐 Security Krebs on Security Brian Krebs breaks the biggest security stories first. 🔐 Security Schneier on Security Bruce Schneier. The original security thinker. 🔐 Security BleepingComputer Malware news and removal guides. Practical and fast. 🧠 Tech WIRED Long-form tech culture journalism. Still worth reading. 🧠 Tech Ars Technica Deep-dive tech reporting. No fluff. 🧠 Tech Hackaday Hardware hacking, projects, and reverse engineering. 🧠 Tech IEEE Spectrum Engineering and technology. The professional edge. 🧠 Tech Internet Archive The memory of the internet. Everything lives here. 🧠 Tech textfiles.com BBS-era text files. A pure time capsule. 🧠 Tech The Old Net Browse the web as it was in the 90s. 🧠 Tech The Verge Consumer tech with strong opinions.