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.

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

Bytesized - Weekly newsletter covering important ideas for developers 💌

Paperplane - High quality HTML to PDF conversion API for developers.

Freshest - Get the latest stuff from your fav sources, in real time

Why is this interesting? - Every weekday Noah Brier & Colin Nagy (and friends) send an email about something interesting.