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Free online character frequency analyzer tool that allows you to perform character frequency analysis on a block of text.

Resources to learn the English language for ESL, EFL, ESOL, and EAP students and teachers. Browse our Glossary of Terms, join our busy forums, download our free language software, read our articles and teacher handouts, and find useful links and info...

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Home of RF Explorer and other Microcontroller projects

Ultrashock, the Ultimate Creative Marketplace. Buy and sell Flash components & templates, Audio, Vector, and Image files. Join our huge community with forums, resources and great profiles.

RC Groups - the most active Radio Control model community: electric and fuel rc airplanes,rc helis,rc boats and rc cars. Features discussion forums, blogs, videos and classifieds.

Audacity Forum provides expert assistance for the free Audacity audio editor. To post a question, click on the correct subforum and choose New Topic.

OZ9AEC website by Alexandru Csete - dedicated to open source research in space technology, communications and Linux.

Tests your audio equipment, speakers, room acoustics and hearing. Audio signals and test tones playable online. High resolution sound test files available for free download.