yarikoptic

Informative (but not unbiased) article about GIT, especially tailored for SVN/SVK users.

Ulrich is a great writer of tech papers: linux, hardware, etc.

Very very nice tutorial in perl's regexps

Very many interesting articles in online format. I wish only they made use of jsMath for equations on some of the pages -- they would look much better

Advice on web design and programming techniques, PHP, ASP, search engine optimization, url-rewriting, .htaccess, web site security, etc.

From the page: "This article reviews in a rigorous but easily accessible way the application of the universal concept of K-space to magnetic resonance imaging (MRI) and NMR microscopy, branches of nuclear magnetic resonance (NMR). There is a tendency among students of MRI to consider K-space as something very difficult to grasp. This is totally unjustified since K-space actually enormously simplifies the systematic exposition and comprehension of most data acquisition and evaluation methods used in MRI and NMR microscopy.
Unlike the majority of introductory texts on K-space, this Note contains all the required math and provides an in-depth explanation of why K-space is so important, not just how it looks and feels. Despite the rigour, the required background includes only the most elementary knowledge of the principles of NMR and an introductory-level knowledge of Fourier Transform. "

very nice and concise howto for use of perl in command line to manipulate files and their content, as an alternative to sed/bash operations.

Nice portal... was referred to this one from nasioc