This app is both a memory tool and a research project into the nature of long-term memory. It offers a number of pre-made card sets contributed by users, and it's recently been updated with a plug-in that allows you to use it on Android phones. Operating System: Windows, Linux, OS X, Android.
This flash card app exercises your ultra-short-term, short-term, and long-term memory to help you memorize virtually any set of facts. And because it's Java-based, you can use it online or offline on nearly any system, including smartphones. Operating System: OS Independent.
This flashcard program for the KDE desktop offers multiple quizzing options to help you learn new vocabulary in English or another language, including anagrams, multiple choice, written (typed) tests, fill in the blank, conjugations and more. You can make your own list, or use one of the numerous user-created lists. (Note that in order to use Parley on Windows, you'll have to download KDE for Windows. Operating System: Windows, Linux.
Like Pauker, jMemorize is Java-based so it works on any system, and like FlashQard, it uses the Leitner System for presenting cards and tracking progress. The interface isn't as attractive as some of the commercial apps, but it's still very functional. Operating System: OS Independent.
This flashcard/study tool lets you create flashcards on virtually any subject, using text, graphics, video, audio, or scientific markup. And it tracks your study sessions and progress so you can see how you're doing. Anki supports virtually every OS available, and you can access the online version from your smartphone. Operating System: OS Independent.
The original .Net version of WorldWind offers very similar functionality as Google Earth. Now you can also download a Java SDK for WorldWind that lets you create your own apps based on the technology. For educators who aren't interested in writing their own apps, the site also includes links to Web applications that other people have created with WorldWind, including ones that track earthquakes and global warming. Operating System: OS Independent.
This world globe app offers special features for classroom teachers, like topographic maps, map keys, temperature and precipitation maps, and more. You can even change the date and time and watch how the sky and twilight zone on the map changes. Operating System: Windows, Linux, OS X.
Designed by libraries for libraries, VuFind provides a Web 2.0 search portal with advanced features that make it comparable to most commercial packages, including faceted search, a "more like this" button, and social features. It also offers a very attractive interface and extensive help. Operating System: OS Independent.
While it doesn't offer as many features or the ease of use of some of the commercial package, OpenBiblio offers good, basic library management functionality. It works with most barcode scanners, and extensive help and other resources are available on the Web site. Operating System: OS Independent.
Developed in New Zealand, Koha claims to be "the first open-source Integrated Library System." It boasts a very complete feature set, including modules for circulation, cataloging, acquisitions, serials, reserves, patron management, branch relationships, and more. Operating System: OS Independent.