Code is a load-bearing poem (and a pop-up newsletter)
A program is a poem that you write for two audiences: The computer, and every programmer who comes after you.
Ruby
Getting into the details of my favorite language
A close read of the ActionDispatch::Response class
Using RSpec Feature Tests to Actually Test What You Think You're Testing
Given the brittleness of RSpec's have_tag matcher and the presence of new Webrat and Capybara matchers that do a better job, have_tag was not included in rspec-rails-2.
A close read of the ActionDispatch::TestResponse class
How does anyone learn to test?
Why I Set Up Honeycomb on Small Projects
What’s the point of instrumenting a toy "hello world" app?