Readability — strips out ads and sends money to the publishers you like. I’d never thought of a business model as something that’s imposed from the outside quite like this, but there you go.
Quora’s Technology Examined (Phil Whelan) — In this blog post I will delve into the snippets of information available on Quora and look at Quora from a technical perspective. What technical decisions have they made? What does their architecture look like? What languages and frameworks do they use? How do they make that search bar respond so quickly? Lots of Python. (via Joshua Schachter on Delicious)