Audacity - audacity.sourceforge.net
Catagory: Desktop/Audio/Editor
License: GPL  

Audacity is a really neat audio program. I use it to record meetings, and it works really well because you can boost the volume to help with people who don't speak loudly :)





Gimp - www.gimp.org
Catagory: Desktop/Graphics/Editor
License: GPL  

The Gimp is a flexible graphics editor capable of very high quality images. It supports nearly everything, and has a very unique interface. It's no photoshop, but it's really neat once you get used to it.





Inkscape - www.inkscape.org
Catagory: Desktop/Graphics/SVG Editor
License: GPL  

Inkscape is an open source SVG editor with capabilities similar to Illustrator, CorelDraw, Visio, etc. Supported SVG features include basic shapes, paths, text, alpha blending, transforms, gradients, node editing, svg-to-png export, grouping, and more.





Azureus - azureus.sourceforge.net
Catagory: Desktop/Internet/BitTorrent Client
License: GPL  

Azureus is fantastic a BitTorrent client.





Firefox - www.mozilla.org/products/firefox/
Catagory: Desktop/Internet/Browser
License: MPL-1.1   NPL-1.1  

Firefox is the best browser on the planet, try it. It has many advanced features such as tabbed browsing, popup blockers, and a vast array of extentions that allow it to do all sorts of cool stuff.





Thunderbird - www.mozilla.org/projects/thunderbird/
Catagory: Desktop/Internet/Email Client
License: MPL-1.1   NPL-1.1  

Thunderbird is an awesome email client from the mozilla project. It supports pop, imap, ssl, extensions, themes, and virtual folders.





FileZilla - filezilla.sourceforge.net
Catagory: Desktop/Internet/FTP/SFTP Client
License: GPL  

FileZilla is a fast and reliable FTP client and server with lots of useful features and an intuitive interface.





Gaim - gaim.sourceforge.net
Catagory: Desktop/Internet/Messenger
License: GPL  

Gaim is a flexible instant messenger with powerfull features, and it works with the following services (all at the same time):
  1. AOL
  2. Yahoo
  3. MSN
  4. Groupwise
  5. Gabber
  6. ICQ
Gaim has some nice features like pouncing, user aliases, spell check, and support for plugins that can do all sorts of things.





7-Zip - www.7-zip.org
Catagory: Desktop/Miscellaneous/File Archiver
License: LGPL  

7-Zip is a file archiver that achieves crazy compression, supports all of the common formats: 7z, ZIP, CAB, RAR, ARJ, GZIP, BZIP2, TAR, CPIO, RPM and DEB. All you winzip users out there, please switch - it's simply better.





PDFCreator - sourceforge.net/projects/pdfcreator/
Catagory: Desktop/Miscellaneous/PDF Distiller
License: GPL  

PDFCreator is a PDF distiller that installs itself as a printer. Print from any windows program such as word, openoffice, or firefox to this "printer" and it will generate a high quality PDF. It supports encryption, password protection and file merging. Why spend the cash on the Acrobat Distiller when you can use this?





Regex Coach - www.weitz.de/regex-coach/
Catagory: Desktop/Productivity
License: ASIS  

The Regex Coach is a graphical application for Windows and Linux/x86 which can be used to experiment with (Perl-compatible) regular expressions interactively.





OpenOffice - openoffice.org
Catagory: Desktop/Productivity/Office Suite
License: GPL   LGPL   SISSL  

OpenOffice is a collection standard office tools:
  1. word processor
  2. spreadsheet
  3. presentation
OpenOffice can easily be a replacement for Microsoft Office, and in fact some features are much nicer than MS Office. Some of the features that stand out are the ability to export to PDF with one click, lack of 256 character limitation on the spreadsheet application, and the ability to export presentation files to flash.





Freemind - freemind.sourceforge.net/wiki/index.php/Main_Page
Catagory: Desktop/Productivity/Process or Idea Mapping
License: GPL  

Freemind is a really unusual mapping software that only can best be explained by using it. It allows a creative tree based model of organizing thoughts, and can import tab delimited text files. You should try it...





Dev-C++ - www.bloodshed.net/devcpp.html
Catagory: Desktop/Programming/Editor
License: GPL  

Bloodshed Dev-C++ is a full-featured Integrated Development Environment (IDE) for the C/C++ programming language. It uses Mingw port of GCC (GNU Compiler Collection) as it's compiler. Dev-C++ can also be used in combination with Cygwin or any other GCC based compiler.





Eclipse - www.eclipse.org/
Catagory: Desktop/Programming/Editor
License: CPL-v1  

Eclipse is an extremely powerfull IDE mainly focused on Java, though I find it to be awesome for Python as well. I really recommend it.





Jedit - www.jedit.org
Catagory: Desktop/Programming/Editor
License: GPL  

Jedit is an extremely powerfull editor that supports almost every language, and has a huge library of plugins. It was my primery editor for quite some time.





Meld - meld.sourceforge.net
Catagory: Desktop/Programming/Visual Diff and Merge Tool
License: GPL  

Meld is probably the most impressive visual diff programs I have ever used. It's awesome.





Ethereal - www.ethereal.com
Catagory: Desktop/Security/Network Analyzer
License: GPL  

Ethereal is used by network professionals around the world for troubleshooting, analysis, software and protocol development, and education. It has all of the standard features you would expect in a protocol analyzer, and several features not seen in any other product. Its open source license allows talented experts in the networking community to add enhancements.





GCC - gcc.gnu.org
Catagory: Language/Compiler
License: GPL-2   LGPL-2.1  

GCC, the GNU Compiler Collection, includes front ends for C, C++, Objective-C, Fortran, Java, and Ada, as well as libraries for these languages (libstdc++, libgcj,...).





Perl - www.perl.org
Catagory: Language/Interpreted Programming Language
License: Artistic GPL-2  

Perl is a programming standard almost.





Python - www.python.org
Catagory: Language/Interpreted Programming Language
License: PSF-2.2  

Python is a very interesting language that lends itself to rapid development. I use it in a medical environment to monitor interfaces and it works quite well.





ImageMagick - www.imagemagick.org
Catagory: Other/Graphics
License: Apache-style GPL Compatible  

ImageMagickTM is a robust collection of tools and libraries to read, write, and manipulate an image in many image formats (over 90 major formats) including popular formats like TIFF, JPEG, PNG, PDF, PhotoCD, and GIF. With ImageMagick you can create images dynamically, making it suitable for Web applications. You can also resize, rotate, sharpen, color reduce, or add special effects to an image or image sequence and save your completed work in the same or differing image format.





Openssh - www.openssh.com
Catagory: Other/Library
License: BSD  

OpenSSH is a free version of the SSH protocol suite of network connectivity tools that increasing numbers of people on the Internet are coming to rely on. Openssh allows you to use a secure method of communication between servers, as well as providing other secure tools such as scp.





Rsync - samba.anu.edu.au/rsync/
Catagory: Other/Utility
License: GPL-2  

Rsync is a really fast incremendal file transfer utility that runs over ssh. It's the perfect tool for data replication or backup.





Bind - www.isc.org/index.pl?/sw/bind/
Catagory: Server/DNS
License: as-is

BIND (Berkeley Internet Name Domain) is a DNS server that pretty much runs DNS for the internet... that's all. I guess there are people who would rather pay to have a bunch of Windows 2003 Servers run it?





PostgreSQL - www.postgresql.org
Catagory: Server/Database Server
License: BSD  

Postgresql is an extremely powerfull relational database supporting triggers, functions, inheritance, transactions, and custom types.





Postfix - www.postfix.org
Catagory: Server/Mail
License: IPL-1  

Postfix attempts to be fast, easy to administer, and secure, while at the same time being sendmail compatible enough to not upset existing users. Thus, the outside has a sendmail-ish flavor, but the inside is completely different.





Sendmail - www.sendmail.org
Catagory: Server/Mail
License: Sendmail  

Sendmail is the email server that powers the internet. Sendmail had an early history of having lots of security problems and being difficult to configure. There are really good alternatives to sendmail, though no one can take away the fact that nearly every email touches sendmail at least once before reaching it's destination.





Spamassassin - spamassassin.apache.org
Catagory: Server/Mail Scanner
License: Artistic   GPL  

Spamassassin is an extremely effective spam filter. It's amayzingly intelligent, and easy to customize.





Subversion - subversion.tigris.org
Catagory: Server/Version Control System
License: Apache/BSD-style   

Subversion is a version control system that supports some really neat features. It's designed to be a better cvs. One very interesting feature is that you can access the system via webdav.





Cacti - www.cacti.net/index.php
Catagory: Server/Web Application
License: GPL  

Cacti is a complete network graphing solution designed to harness the power of RRDTool's data storage and graphing functionality. Cacti provides a fast poller, advanced graph templating, multiple data acquisition methods, and user management features out of the box. All of this is wrapped in an intuitive, easy to use interface that makes sense for LAN-sized installations up to complex networks with hundreds of devices.





Apache - www.apache.org
Catagory: Server/Web Server
License: APACHE-2.0  

Apache is the worlds most dominant web server, serving more than 70.98% of our current internet (74,572,794 sites as of 11/2005).






mod_python
monkey
0.0.5
17.152071 ms