Simon Willison’s Weblog

Tutorials on Microformats. Roger Costello’s 11 tutorials on microformats, covering hCard, hCalendar, hReview and more.

Posted 14th February 2007 at 4:45 pm

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

microformats 32 tutorial 18

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