Simon Willison’s Weblog

Graphics from the command line (via) Tutorial for ImageMagick’s command line tools 10:31 pm

64 bit immediates in Python. Low level language geekery 10:35 pm

New Technorati Infrastructure beta test! (via) It certainly feels faster 10:36 pm

non-consensual http user tracking using caches. Interesting security issue involving HTTP caching headers 10:37 pm