Really nicely, and visually, explained introduction to the Fast Fourier Transform - great stuff!
Just got back from the Usenix/Lisa 12 conference in San Diego, and had a great time, super inspiring talks and content.
Highlight of the conference for me was Brendan Gregg speaking on Performance Analysis Methodologies - most of his talk was based upon a paper he just published in ACM - Thinking Methodically About Performance.
The talks haven't yet been published on the Usenix website, but Brendan's blog has a ton of great looking content and older talks including this one on Visualisations for Performance Analysis
Ah, see, my comic is all true! :D
Ever since reading Neal Stephenson's Mother Earth Mother Board article, I've been quite fascinated with the undersea cables which physically connect the land masses of the world. This map, linked above is an amazing view into this part of the Internet's current infrastructure.
Excellent timeline of the Internet‘s evolution from 1962 till the present day..