Simon Willison’s Weblog

The science of the hashtag. Interesting analysis of how the #lessambitiousmovies hash tag took off thanks to retweets from a couple of key users with very creative followers.

Posted 14th January 2011 at 4:02 am

Recent articles

First impressions of Claude Cowork, Anthropic's general agent - 12th January 2026
My answers to the questions I posed about porting open source code with LLMs - 11th January 2026
Fly's new Sprites.dev addresses both developer sandboxes and API sandboxes at the same time - 9th January 2026

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