Growl for Windows - Growl for Windows is a Windows-compatible version of https://alternativeto.
Whale - Video Q&A with influencers and experts 🐳
Notify OSD - Canonicals on-screen-display notification agent, implementing the freedesktop.
YAM - Video Q&A platform where you can get paid to ask or answer questions.
Notifu - Notifu, a free open source pop-up balloon utility
Convoz - Connecting the world through collaborative conversations.