I met Robert Gentleman, founder of the "R" project for statistical computing. He's working at the Fred Hutch Cancer Research Center now.

Han Rosling (Sweden) has some really good graphics showing GDP vs Health and GDP vs CO2 emissions - animated over the last 200 years showing the changes in each country of the world.

Mostly showing the demo differences between Firefox and IE. 17% of the University market (only 10% of Home and 8% at work).

One chart I find confusing if not read properly. It shows that for 18-24 year olds, FF at 22% and IE at 13%. But it looks like Firefox is actually beating IE in this demographic. That's not it at all - it's just that a higher percentage of it's user base is young as opposed to IE. IE still has many times more 18-24 year olds than FF.

Quoted: http://www.comscore.com/mt/mt-tb.cgi/14

How to test if a random sequence is really "random" looking.

Quoted: ENT: A Pseudorandom Number Sequence Test Program

Cal Henderson (FlickR) says pretty good - though nothing commercial is great for web log analysis (at least for large scale sites).

Quoted: Measure Map helps you understand what people do at your blog, and what influence you are having on the world.

Next Expected Run Values (NERV) - I like scoring a baseball game. Even better is tracking the change in NERV as each batter progresses...

Quoted: May-June 2002: Features