Freeware... because the software police will eventually carry mace.

MorphX


www.norrkross.com
Mac OSX
Use Norrkross MorphX for calculating images or movies where one image transforms into another. Simply drag 2 images to the document window, drag a few lines to indicate similar areas and Norrkross MorphX calculates images so that it looks like the first image magically is transformed into the other. You can save the morph as as still image snapshot or as a full animated QuickTime movie.

Carbon Copy Cloner and Netrestore


bombich.com
Mac OSX
Both written by a Mac administrator's best friend... Mike Bombich.  Much like Norton Ghost for windows, Netrestore allows you to create disk image files and "clone" computers through a network connection.  Carbon Copy Cloner does the same but between two local disks.

Cyberduck


cyberduck.ch
Mac OSX
An easy to use FTP client for OSX. Even comes with a widget interface and example applescripts showing how to automate FTP transfers.

Sauerbraten


sauerbraten.org
Mac OSX, Windows, Linux
Sauerbraten is a free multiplayer/singleplayer first person shooter, built as a major redesign of the Cube FPS.

TrueCrypt


www.truecrypt.org
Mac OSX, Windows, Linux
Creates encrypted virtual disk files for storing data which must be kept secure even in the event that your computer is stolen. The program can also completely encrypt an entire disk, such as a USB key chain.

NHR


mac.softpedia.com
Mac OSX
Network Home Redirector is a series of install packages for OSX which simplify's the task of redirecting the cache stores for things like fonts and Microsoft Office when you are logged into a network home folder. Before now this process was complex to setup, but essential in districts using Network home folders in conjunction with Microsoft office.

Iceberg


s.sudre.free.fr
Mac OSX
A program which helps in the creation of OSX installer packages (.pkg files). Combined with Apple Remote Desktop, package files can be a powerful tool in the management of large scale Mac deployments.

Angry IP Scanner


www.angryziber.com
Mac OSX, Windows, Linux
Angry IP scanner is a very fast IP address and port scanner. It can scan IP addresses in any range as well as any their ports. Useful in analyzing firewall rules and security concerns. It is cross-platform and lightweight.

SpamPal


www.spampal.org
Windows
An in genius open source program which works to filter out spam email on your Windows computer.  The program works by actively monitoring traffic coming into the POP and IMAP ports, and therefore does not need to be setup for a specific email client (making the setup very simple and effective).

Integrity and Xenu's Link Sleuth


Integrity
Mac OSX, Windows
If you run a website, it is always a good idea to check peridically for broken links. These two programs are the best automated link checkers I have found. Integrity for Macs, and Xenu's for PCs.

Transmission


www.transmissionbt.com
Mac OSX
My favorite Bittorrent Client. Extremly Lightweight with just the right amount of features.

NmapFE


faktory.org/m/software/nmap/
Mac OSX
A popular port scanning and network security utility; NmapFE for OS X is a no hassles, GUI version for us Mac users.

SeaShore


seashore.sourceforge.net
Mac OSX
Seashore is an OSX native image editor based on the popular unix program GIMP.  The program has the look and feel of Photoshop Elements,  and shares many of photoshop's features such as: layering, alpha masks, and channels.  Files can be saved as TIFF or JPEG.  Great for middle school classes that want to do more advanced image editing.

JumpCut and Clipboard Buddy


Clipboardbuddy
Mac OSX, Windows
Both programs are what is commonly called clipboard-buffers. This means they will quietly sit in the background on your computer and store things that you cut or copy to the clipboard. After using one for a bit you will find yourself wondering how you ever got by with only copy/pasting one bit of text at a time. JumpCut is for OSX and Clipboard Buddy is for Windows.

Tiler


www.mindcad.com
Mac OSX
A small application used to break up and print PDFs on multiple 8.5 x 11 pages. An easy way to make those long banners that line the school hallways.

Bonjour Browser


www.tildesoft.com
Mac OSX
The application will scan the LAN for any nodes which are Bonjour enabled, and present them in a single window.

SMARTReporter


corecode.at/smartreporter/
Mac OSX
Monitor your OS X (or OS X Server) hard drive/s. SMARTReporter runs in the background and periodically checks the SMART status of your hard drives.  SMART is a technology installed in the firmware of hard drives which detects hardware failures, or impending failures.  SMARTReporter can be set to popup alerts or send an email if there is a problem.

PHPList


www.phplist.com
Web-Based
An open source news letter manager which is easily integrated into an existing school/district website. It features RSS aggregation, scheduling, mailing-list opt in, tracking, and a bunch of other useful functions.

Integrity and Xenu's Link Sleuth


Xenu's Link Sleuth
Mac OSX, Windows
If you run a website, it is always a good idea to check peridically for broken links. These two programs are the best automated link checkers I have found. Integrity for Macs, and Xenu's for PCs.

Picasa


picasa.google.com
Windows
An excellent piece of software made by the folks at Google to organize, edit, and share your digital photos. Very much the equivalent to iphoto for those poor people not fortunate enough to have a Mac.

SpiceWorks


www.spiceworks.com
Windows
Is a network monitoring and inventory type software.  It can track and give all kinds of details about nodes on your network (PCs, Switches, Routers, Printers, etc). Unfortunately it must be run from Windows. But it can report on OSX, Linux, and Unix stations just fine.

MyHome


software.relevantwalk.com
Mac OSX
An excellent addition to any elementary school who uses locally managed accounts in OSX and has students manually mount their home folders.  Just put MyHome in the dock, and no more "I forgot how to get to my server."

HandBrake


handbrake.fr
Mac OSX, Windows, Linux
A program to rip DVDs to MPEG-4 video (or MP3 audio). Useful if you ever wanted to take your videos on the go without bringing the disk. Also handy if you want to cut a video or audio clip out of a movie and us it in a project.

Thunderbird


www.mozillamessaging.com
Mac OSX, Windows, Linux

This open source email client is maintained by the same community that develops Firefox (Mozzilla).  It is a very clean and easy to use email program.  Basically all the best parts of Outlook, without the clutter.

SyncBack


www.2brightsparks.com
Windows
A simple yet powerful backup utility for Windows.  Can be used to backup or synchronize critical folders to backup drives, or network shares.  Contains many advanced options like email notifications, encryption, compression, filtering, and will even close active programs if you like.

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