Posts from June 2003

20th June, 8:08 am

New articles by me:

Designing user authentication systems

The problem with cookie authentication

There are also a whole bunch of new articles added to the publish section which were going to be in Ben Hammersley's "Blog Hacks" book (which, sadly, O'Reilly decided not to publish).

19th June, 8:03 am

I've been meaning to do this for ages. The Ikea Game is old news. Trendy people play The Paint Game

14th June, 2:59 pm

The latest project from the combined minds of me and my brother:

[colondee :D](http://www.colondee.com/)

About

This is the personal site of Cal Henderson, Slack co-founder & CTO, ex Glitch engineer, ex Flickr architect, programmer, author and chronic complainer.

I give occasional talks, write code and sometimes articles. I also blog at World of Theorycraft and those links show up here too.

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