Create view containing all content containing taxonomy terms in free text? I am using a taxonomy together with the Lexicon module to automatically create links to another website (a pretty neat solution with instructions here)

But I would also need to create view that list all nodes that contain the taxonomy terms. I am fairly competent at using the views module but I cannot figure out how to take the list of taxonomy terms and display all nodes that contain the terms in the text and what taxonomy terms the node contain.
If I understand correctly, you want to have one page that will display nodes grouped by taxonomy term they belong to so that the result is like this:


Term 1


article 1
article 2

Term 2


article 2
article 3

Term 3


article 1
article 3



To achieve that:


Create a view to display all content of [content type name] and select the node fields you want to display in place of article 1,2,3 (probably title of the node at least).
Add relationship "Content: Taxonomy terms on node" and decide which taxonomy you want to narrow down the display. 
Under View field, there should be now a list of Taxonomy related fields. You probably want to add field "Taxonomy term: Name". Exclude that field from display.
Under View  format settings, select to Group By that taxonomy field.