Speed. Take every µ-benchmark with a spoon-full of salt, but here are some interesting numbers. First, on the speed differences between Node.js and Python, and we know what other languages are about as fast as Python.

This article benchmarks Ruby vs Node.js on Heroku. The interesting take was actually the performance comparison within each language: Thin vs Unicorn and Node vs Cluster.

And if you want to try it at home, check out Performance Testing Rails Applications — How To?

Cramped. Cramp is an asynchronous framework for Ruby, and looks like a solid way to add WebSockets and Server-Sent Events to your Web app.

Tagged. Interesting that you can use HTTP headers ETag/Last-Modified as persistent cookies and to track visitors across sites. And I’m not suggesting you do it, but be aware that clearing cookies is not alway enough.

My name is … firstName/lastName considered harmful: everything you need to know about the varieties of personal names. Read this before you write another signup form.

Tunnels. Awesome SSH tips and tricks.

QotD MinimalMac on the failure that is every non-iPad tablet:

Apple did not beat you with the iPad. They beat you with the iPad market. A market they created out of the ashes of burning netbooks, low cost laptops, and PCs that no one really liked or wanted in the first place. There simply was no other option at the time available for them to buy otherwise. Apple created that option.

Warfare. This shit is happening: Enter the Cyber-dragon, about the ongoing cyberwar with China.