Open Source Software
3D Content creation
Blender is the free open source 3D content creation suite, available for all major operating systems under the GNU General Public License.
Blender education and help
Audio
Audacity is an easy-to-use, multi-track audio editor and recorder for Windows, Mac OS X, GNU/Linux and other operating systems. Developed by a group of volunteers as open source.
Video
Handbrake is an open-source, GPL-licensed, multiplatform, multithreaded video transcoder, available for MacOS X, Linux and Windows.
Virtualdub is a video capture/processing utility for 32-bit and 64-bit Windows platforms (98/ME/NT4/2000/XP/Vista/7), licensed under the GNU General Public License (GPL).
Communications
Jitsi is an audio/video and chat communicator that supports protocols such as SIP, XMPP/Jabber, AIM/ICQ, Windows Live, Yahoo! and many other useful features.
Other programs
Launchy is a free cross-platform utility designed to help you forget about your start menu, the icons on your desktop, and even your file manager. Launchy indexes the programs in your start menu and can launch your documents, project files, folders, and bookmarks with just a few keystrokes!
Mangler is an open source VOIP client capable of connecting to Ventrilo 3.x servers. It is capable of performing almost all standard user functionality found in a Windows Ventrilo client.
Open Source Software for Windows
PHP GED View and get help here
Shutter is a feature-rich screenshot program. You can take a screenshot of a specific area, window, your whole screen, or even of a website - apply different effects to it, draw on it to highlight points, and then upload to an image hosting site, all within one window. Shutter is free, open-source, and licensed under GPL v3.
Recordmydesktop is a desktop session recorder for GNU / linux that attemps to be easy to use, yet also effective at it's primary task.
My Open Source Ticket Request System OTRS notes page
OTRS is an Open source Ticket Request System (also well known as trouble ticket system) with many features to manage customer telephone calls and e-mails. The system is built to allow your support, sales, pre-sales, billing, internal IT, helpdesk, etc. department to react quickly to inbound inquiries. Do you receive many e-mails and want to answer them with a team of agents? You're going to love the OTRS!
Notification tags on OTRS FAQ
osTicket is a widely-used open source support ticket system. It seamlessly integrates inquiries created via email, phone and web-based forms into a simple easy-to-use multi-user web interface. Manage, organize and archive all your support requests and responses in one place while providing your customers with accountability and responsiveness they deserve.
Diaspora is the privacy aware, personally controlled, do-it-all, open source social network.
Instant Messaging software
Pidgin is a chat program which lets you log in to accounts on multiple chat networks simultaneously. This means that you can be chatting with friends on MSN, talking to a friend on Google Talk, and sitting in a Yahoo chat room all at the same time.
Information Gathering software
Creepy software
Mail programs
Sendmail
Sendmail configuration readme
Confirm sendmail is installed and configured try:
# mail -s “Enter Subject” <email address>
Use return key for a a new line. Enter body of message. Select enter again then CTRL+D. Check your mailbox.
View sendmail processing messages in the queue:
sendmail -q -v
The mailertable @ /etc/mail/mailertable enables you to specify the delivery agent. In my case I use SMTP so I define an SMTP server using this format:
domain_of_email.com smtp:dns.of.delivery.agent.com
Save file and restart sendmail:
# service sendmail restart