Simon Willison’s Weblog

How Ads Really Work: Superfans and Noobs. My variant on this idea is to serve ads only on content that’s at least 6 months old. I’ve made $473.98 since January.

Posted 1st June 2007 at 9:10 pm

Recent articles

OpenAI are quietly adopting skills, now available in ChatGPT and Codex CLI - 12th December 2025
GPT-5.2 - 11th December 2025
Useful patterns for building HTML tools - 10th December 2025

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