Livestorm - Livestorm is browser-based webinar software. We are on a mission to make your webinars simpler and smarter.
Finale - Finale, the world standard for music notation software, lets you compose, arrange, notate, and print engraver-quality sheet music.
GoToWebinar - Webinar & Online Conference | GoToWebinar
Booklet - Modern forum + directory for professional groups
WebinarNinja - Beautiful webinars. No worries.
MuseScore.org - Create, play back and print beautiful sheet music with free and easy to use music notation software MuseScore. For Windows, Mac and Linux.