Trackly - Trackly monitors web pages and tells you when they change. Beautifully!
Feather Icons - Simply beautiful open source icons
Loading.io - Discover and animate icons, images, backgrounds, and more
Gestimer - For those little reminders during the day
Indie Hackers - Connect with fellow entrepreneurs, developers, and bootstrappers who are sharing the strategies and revenue numbers behind their companies.
Be Focused by XWaveSoft - Simple Pomodoro timer in your Mac's menu bar