EasyPortuguese	Portuguese lessons, useful phrases, audio samples, vocabulary, alphabeth, etc.
Interlex	A free Windows application that can help you learn vocabulary in a foreign language. The program is built around a simple idea: first you compile a list of words and phrases, then you test yourself until you have learnt them.
Learn Mandarin Chinese	25 free online Mandarin Chinese lessons.
UsingEnglish.com	Provides a large collection of English as a Second Language (ESL) tools & resources such as: a grammar glossary and references of irregular verbs, phrasal verbs and idioms, ESL forums, articles, teacher handouts and printables, links and information.

HippoCampus	High-quality, multimedia content on general education subjects, including Algebra, U.S. History, Calculus and Physics, to high school and college students free of charge.
LTP Math	Mathematics sites for educators.
Periodic Table Elements Database	Online periodic table with elements database (description of the properties all the elements).
S.O.S. Mathematics	Free resource for math review material from Algebra to Differential Equations.
Tech Corps	A collection of links to educational resources.
WiseGorilla	Free educational clip art and links to other quality free educational clip art sites.
e-Learning @Mienet	On-Line Education Opportunitites and Related Resources
Educational Resources	Yahoo discussion group + encyclopedia on education resources

CrypTool	CrypTool is a freeware educational program which enables you to apply and analyze cryptographic mechanisms. CrypTool has implemented almost all state-of-the-art crypto functions and allows you to learn about and use cryptography from within a single environment.
Educational Software Downloads	Educational freeware and shareware.
Hallo northern sky	A free planetarium program for windows with 26000 deep sky objects and all stars to magnitude 12 and with the original GSC CD's, GSC-ACT or the USNO UCAC2 to magnitude 16. It displays all planets, the Moon, Sun, moons of Saturn, Jupiter, Mars, Uranus and Neptune and a few hundred asteroids and comets. It comes with 255 small DSS deep sky images which will blend in at the right size and orientation.
Homestudy Institute Of Drums	Free downloadable mini-homestudy course for beginning drummers.
JVP Periodic Table	Freeware program containing the entire periodic table of elements. It allows you to access all the elements by Atomic Number, Alphabetical List, or Chemical Series group. Included: All 109 known elements with 2,621 isotopes, half-life, isotopic mass, radioactive decay, particles, complete decay paths and other information, including orbitals, boiling and melting points, atomic radius, bonding radius, chemical series, type classification, ionization, electronegativity, and much more, with a "Fast Facts" page included with the program. This is one of the very few periodic tables which has the isotopes and orbitals.
Mathematical Software	Many links to mathematical programs.
NoteCard	Freeware for Windows. Educational software that will give you drill at recognizing music notes. It can significantly shorten the time it takes to learn to recognize the notes instantly, an absolutely necessary ability for fluent reading. As notes are displayed on a musical staff, you enter the note name, or click in the appropriate place on a piano keyboard or guitar neck graphic. Provides practice with both treble and bass staves. Work through twelve levels as your skill builds.
StarCalc	Freeware astronomy planetarium & star mapping program for Windows and Pocket PC/WinCE.