Reading is a highly subjective and personal experience: it's determined by objectives, time, preference, resources. Therefore ...

With a longer text you might find colour coding a helpful way to annotate various themes. Key fact Avoid making so many annotations that you can no longer read the text! Be selective, and pick out ...

Google discontinues the Page Annotations feature, which diverted traffic from websites back to Google's search results.

Pick out examples of where they do so. Avoid making so many annotations that you can no longer read the text! Be selective, and pick out the details that interest you.