javascript

A 2009 Google Tech Talk by Nicholas Zakas on the hidden performance pitfalls of JavaScript. It covers what is fast and slow in the language and how to avoid common bottlenecks.

Alex Martelli's Google Developers Day talk on classic design patterns (creational, structural and behavioral) and how they appear in Python. He stresses that patterns must be studied in the context of the implementing language.

Larry Wall speaks at Google's Chicago office in 2008 about the Perl community, the language, and Perl 6. The talk touches on grammars, macros and error messages.