(SVN) Version Control with Subversion
SVN tutorial SVN dostep SSH
Online LaTeX editor
Detexify2 - LaTeX symbol classifier
Linux Knowledge Base and Tutorial
Linux About
Sciaga UNIX Toolbox
Linux Command Line Reference More Linux Command
FOSSwire Unix/Linux Command Cheat Sheet
Bash Command Line History
sed cheat sheet
awk cheat sheet
VIM Reference Card
Graphical vi-vim Cheat Sheet
Emacs cheat sheet
Debian tlumaczenia
Fedora
OpenSUSE
Linux-Unix cheat sheets - The ultimate collection
A crontab GUI to make crontab format and syntax easy
RegEx Evaluator
The Debian Administrator's Handbook
10 Minute Mail
Free Spam Blocker
mailinator
spambox
MySpamBox Firefox addon
AlternativeTo
open source alternative
wakoopa - discover software & games
Linux Apps Finder - Windows and OS X Software Alternatives
Social Engineering Ninja Grzegorz Niemirowski online
The Password Meter
Narzędzie do sprawdzania haseł Microsoftu
GoodPassword
Javascript Password Strength Meter
Forvo: the largest word pronunciation dictionary in the world
Słownik haseł z krzyżówek
PCI Vendor and Device Lists
Geekbench Result Browser
Google Search Easter Eggs
Steganography in Unicode text
http://bydgoskie.org
Dropbox