Simon Willison’s Weblog

Lessons from mySociety conversion tracking. Neat trick: show the user a “subscribe” form with their e-mail address pre-filled for them and there’s a much higher chance that they’ll click the button.

Posted 17th March 2008 at 2:12 am

Recent articles

JustHTML is a fascinating example of vibe engineering in action - 14th December 2025
OpenAI are quietly adopting skills, now available in ChatGPT and Codex CLI - 12th December 2025
GPT-5.2 - 11th December 2025

conversions 1 email 35 marketing 18 mysociety 13

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