Simon Willison’s Weblog

FT.com: The rise and fall of MySpace (via) Lots of stuff about the internal politics at News Corporation. Of particular interest: MySpace have to take feature proposals to News Corp for approval. Meanwhile, Facebook are leading the industry in their use of A/B testing to figure out exactly what features their users will respond well to. 5th December 2009, 5:09 pm

Effective A/B Testing. Impressively comprehensive presentation on A/B testing, from theory to practice to statistical analysis of the results. 13th September 2009, 11:49 pm

You should follow me on Twitter. Dustin Curtis did a simple A/B testing experiment on his blog and found that the text “you should follow me on Twitter” had the highest click-through rate—173% more effective than “I’m on Twitter”. 15th July 2009, 10:43 am