Today I Learned ...
The Most Important Word in Publishing
MathML browser extensions
The Nicaragua Canal
Amazon efficiency, part 2
Six Nations Roundup 2013
Python is shit!
Electric cars: the green threat
Kindle in India
Oh look, more Olympic financial incompetence
Rugby World Cup roundup
Star ratings revisited
Olympic ticketing fiasco shows the Olympics aren't wanted
Giving up sobriety for Lent 2011: week 6
Zapato Productions intradimensional
Things I Won't Work With
I made a shiny thing! It can plot arbitrary functions of the form x=f(y) or y=f(x). Under the skin, it just massages its arguments and passes them through to Gnuplot. Here's the source code.
Update: now 48.3% even shinier - see on the right