EarMaster - Professional software for ear training and practical music theory on Windows and Mac.
Kickstarter - Kickstarter is the world's largest funding platform for creative projects. A home for film, music, art, theater, games, comics, design, photography, and more.
GNU Solfege - GNU Solfege is free music education software.
FreeFunder - Free crowdfunding platform with no platform fee and donates to your fundraiser based on shares!
Meludia - Listening exercises and to sharpen your ear and music theory skills
Give - A WordPress plugin for easily collecting donations