WebAtlas recently produced a work-in-progress map of european websites in a training workshop during which european scientists got involved in web crawling and information spatialization.
This map uses a force vector to place the websites (nodes), related to others by their hyperlinks (edges). Colors highlight the clusters by country, e.g. green for Poland, light violet for France etc.
Download the PDF map of all countries (Note that with PDF Reader you can search URLs in the PDF)
Download the Excel file of all websites (with pre-expanded websites as “NEXT”)
Gephi blog 