Programming

http://blog.zhuzhaoyuan.com/2009/08/creating-a-hello-world-nginx-module/ blog post with a source of “hello world” nginx module

http://blog.zhuzhaoyuan.com/2009/09/nginx-internals-slides-video/ very good presentation slides explaining nginx internals, such as main architecture, main event loops, core modules, processing pipelines, etc. Also there is a video of the talk , but it is mandarin, so YMMV :-)

http://habrahabr.ru/blogs/infosecurity/70615/#habracut statistical method for detection of statistical malicious javascript, perl implementation.

http://habrahabr.ru/blogs/perl/70610/#habracut interesting article explaining some details about perl “one-liners”

http://habrahabr.ru/blogs/perl/69890/#habracut example on how to work with async sockets in perl using AnyEvent module

http://habrahabr.ru/blogs/perl/69411/#habracut some examples on how to write simple http server in Perl

http://habrahabr.ru/blogs/hi/69457/#habracut high-load web notification system or how to do persistent connections in ajax/js. Useful for counters, friend-status updates and so on. Example is given for libevent-based daemon in perl.

http://habrahabr.ru/blogs/php/69616/#habracut how to generate open office document in PHP

http://xph.us/software/beanstalkd/ seems to a rare thing: a message queue server, running as a native code

http://www.csharphelp.com/archives/archive281.html explains how to build a .DLL in C# with COM interface, so it can be used by other manageable/unmanageable code (i.e. VB, C++, etc)