Linux

https://github.com/kahun/awesome-sysadmin

Scalability

http://highscalability.com/blog/2013/4/15/scaling-pinterest-from-0-to-10s-of-billions-of-page-views-a.html

Hadoop

Installing Hadoop on Ubuntu 12.04: http://yogeshblogger.blogspot.de/2012/10/installing-hadoop-on-ubuntu-1204-single.html

Running Hadoop on Ubuntu Linux Single Mode: http://www.michael-noll.com/tutorials/running-hadoop-on-ubuntu-linux-single-node-cluster/

Writing an Hadoop Mapreduce program: http://www.michael-noll.com/tutorials/writing-an-hadoop-mapreduce-program-in-python/

Usability

UX design for startups: http://uxpin.com/ux-design-for-startups.html

OS Architecture

Think OS is an introduction to Operating Systems for programmers: thinkos

Howtos/Tutorials

• Defensive BASH Programming: defensive-bash
• Aliens Bash Tutorial: http://www.subsignal.org/doc/AliensBashTutorial.html
• Buddha Wiki: http://www.bitbull.ch/wiki/index.php/Hauptseite

Virtualization

• Apache Mesos - cluster manager: mesos-homepage
• OSv is a new open-source operating system for virtual-machines: osv-homepage

Performance

• Socket Sharding in NGINX: socket-sharding