Minimizing spam

http://www.linux.com/article.pl?sid=07/03/28/1522252

Traffic shaping

http://www.linux.com/article.pl?sid=07/04/06/1516252

Simplifying vim

http://www.linux.com/article.pl?sid=07/03/22/1236235

Burning disk images

http://lifehacker.com/software/mac-os-x/mac-tip–how-to-burn-an-iso-or-dmg-file-to-disc-251758.php

From Linux to the Mac

http://www.macports.org/

System monitoring tools

http://news.softpedia.com/news/Monitoring-a-Linux-System-With-X11-Console-Web-Based-Tools-51678.shtml

http://conky.sourceforge.net/

Grey power

http://programming.newsforge.com/article.pl?sid=07/01/15/2030246&from=rss

OCR on the way

http://code.google.com/p/ocropus/

Dot Mac alternatives

http://5thirtyone.com/archives/741

Quick Postfix masquerading

http://www.cyberciti.biz/tips/howto-postfix-masquerade-change-email-mail-address.html

Forwarding X11

http://www.cyberciti.biz/tips/linux-mac-osx-x11-forwarding-over-ssh-howto.html

FTP server monitoring

http://www.howtoforge.com/proftpd_monitoring_phpftpwho

Totally gimp

http://tutorialblog.org/gimp-tutorials/

Equivalent or better

http://linux.wordpress.com/2007/04/08/why-use-software-illegally-when-you-can-use-legally/

The perfect server - Debian

http://www.howtoforge.com/perfect_setup_debian_etch

Music access without iTunes

http://www.yousoftware.com/tunes/itunes.php