Hacker Newsletter - Best of Hacker News in your inbox every Friday.

GitHub Metrics - Customize your profile with various plugins and metrics

Daily Time Tracking - Daily shows what you have been working on and for how long. It creates accurate timesheets by asking what you are doing, so no more timers or switching tasks. Use its data to submit your hours, create invoices or simply increase your productivity.

GitHub Contributions - All your GitHub contributions in one image

Product Hunt - A website that lets users share and discover new products

Contributions for GitHub - Show your GitHub contributions graph on your iOS Devices