Diigo is an Android app for adding notes and annotations. Notes can be added to your Diigo library which may consist of a variety of different types of web pages and files. You can even capture parts of a website to save and then overlay notes on the image.

Diigo helps you organize useful files and website pages. You can highlight sections, mark pages as already read and add bookmarks. This helps you to go back to a useful webpage and begin reading again right where you left off. This version allows you to use the app on Android devices.