Google Docs - Create a new document and edit with others at the same time -- from your computer, phone or tablet. Get stuff done with or without an internet connection. Use Docs to edit Word files. Free from Google.

SageThumbs - SageThumbs is a powerful shell extension allowing to preview enormous amount of image formats...

Airborn - Create and edit documents online without sacrificing your privacy

MysticThumbs - MysticThumbs generates thumbnails of many image types not natively supported by Windows.

Bit.ai - Bit is a smart real-time document collaboration platform for teams to create interactive documents, manage digital content and track document insights.

Icaros - Icaros is a collection of lightweight, high quality, Windows Shell Extensions