Via the (great!) weekly newspaper "Die Zeit" I found an interesting map of important internet sites: Websites grouped by topics and drawn like Tokyo's subway map - by informationarchitects.jp.
Using the subway-map paradigm from cartography to categorize and relate internet organizations and websites was new to me - and took away a few hours of my time (which I spent surfing previously unknown sites...). They grouped around 300 sites along the major "lines".
Great stuff - well worth a peek. Downloadable in a variety of formats - even clickable :-)
