Carl Barks - The Good Duck Artist - Lots of original work by the great duckman.
The $crooge McDuck Page - Lots and lots of Duck stuff!
Don Rosa - The New Duckmaster - A great site dedicated to Don Rosa, with lots of info in both English and Finnish!
Carl Barks - His Work and His Life - Plenty of info here!
Scrooge McDuck - The title says it all!
Don Rosa - A fan site about one of the best duck artists!
Geir J. Netlandīs Unofficial Don Rosa Gallery - Another fantastic Don Rosa site, with lots of images.
Derek's Disney Ducks Links - Some duck links from a duck fan.
Kit's Silver Age Comics - If you feel like buying some duck comics, this site has a lot of 'em.
The INDUCKS - An important reference
Disney Covers USA - A great site for comic covers
The World's Largest Website On Carl Barks - This is a fantastic site, with lots of information!