http://www.hamburg.de the city of hamburg's official site. info about the city, guides, good maps, web cams and panoramas etc
http://www.hamburger-kunsthalle.de hamburger kunsthalle, good links here to hamburg's museum culture
http://www.hamburgport.com general interest for the traveller, climate, exchange rates & currency, eating, drinking, entertainment etc
http://www.kampnagel.de kampnagel's website
http://www.tallyhos.de especially for tony schwensen