Snarl - Snarl is a notification system for Windows.
Pocket Explore - A human curated version of the web
Notifu - Notifu, a free open source pop-up balloon utility
Mailist - Receive weekly reminders of unread, bookmarked articles
Notify OSD - Canonicals on-screen-display notification agent, implementing the freedesktop.
Pocket Listen - Reading is hard. Listen to articles instead.