1. The document outlines 10 steps for getting started with the Diigo web annotation tool, including creating an account, installing the toolbar, bookmarking and annotating web pages, highlighting text, adding sticky notes, capturing images, and creating groups.
2. Key features covered are bookmarking and organizing bookmarks in a library, highlighting text and viewing highlights, adding private or public sticky notes to pages, and creating groups to collaborate and share bookmarks and annotations with others.
3. Setting up an account, installing the toolbar, and learning the basic functions to bookmark, annotate, highlight, and capture content from web pages are the initial steps covered to get started using Diigo.