Marginalia ( http://www.geof.net/code/annotation) is a web annotation system. This allows user to write margin notes by highlighting text. Marginalia annotation is integrated within Moodle discussion forum. This document explains how to use Marginalia in Moodle discussion forum.
Select annotation preference
Click a discussion topic from a list of topics in the discussion forum. It will bring the screen similar as shown in Figure 1.
Figure 1: Discussion Forum - Selecting Annotation
On the top right corner of the page, you can see a combo-box with three selections - Hide annotation, My annotations and All annotations. Select My annotations or All annotation from the list. You can get description of these selections by clicking the help (?) link located on the left to this combo-box
Highlight the text in the discussion forum and press "Enter" key. A cursor will move to the right hand side margin of the discussion forum with highlighting the current selection. Add your annotation text and press "Enter" key as shown in Figure 2.
Figure 2: Adding Annotation
More information on how to use Marginalia can be found at http://www.geof.net/code/annotation/demo/