Microsoft Outlook - Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.

Readwise - Effortlessly rediscover and organize your Kindle highlights

Thunderbird - Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!

Clippings.io - Organize the notes you make on your Kindle

Front - The platform for exceptional customer service at scale.

Klib - Kindle & iBooks Highlights Manager