Snarl - Snarl is a notification system for Windows.
dArray - The private accounting software dApp for your business
Notify OSD - Canonicals on-screen-display notification agent, implementing the freedesktop.
ETF and Stock correlator - Find similar assets for tax-loss harvesting
Notifu - Notifu, a free open source pop-up balloon utility
Salut - Find and support free virtual fitness classes and trainers