Simon Willison’s Weblog

Crowdvine, iCalico, Pathable, a Study in Collusion. Stitching sites together around a single user database using subdomains and simple signed cookies.

Posted 12th July 2007 at 11:09 pm

Recent articles

Useful patterns for building HTML tools - 10th December 2025
Under the hood of Canada Spends with Brendan Samek - 9th December 2025
Highlights from my appearance on the Data Renegades podcast with CL Kao and Dori Wilson - 26th November 2025

collusion 1 crowdvine 1 foocamp 3 icalico 1 kellan-elliott-mccrea 19 pathable 1 signedcookies 5 sso 3

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