Quickies: pv tricks

http://blog.urfix.com/9-tricks-pv-pipe-viewer/

Performance-teak your SSD

http://www.howtogeek.com/62761/how-to-tweak-your-ssd-in-ubuntu-for-better-performance/

Using anacron

http://www.thegeekstuff.com/2011/05/anacron-examples/

Record internal audio

http://www.ubuntugeek.com/how-to-recording-internal-audio-in-ubuntu.html

Choosing a motherboard

http://www.howtogeek.com/62588/how-to-pick-the-right-motherboard-for-your-custom-built-pc/

Ask OSX for your serial number

http://www.tech-recipes.com/rx/14166/os-x-simple-ways-to-find-your-macs-serial-number/

Tricks with screen

http://blog.urfix.com/top-10-awesome-linux-screen-tricks/

Build a bridging firewall (4)

http://www.linuxjournal.com/article/10899