Barbie

Doll Attic
Includes vintage Barbie, Ken, Skipper, and Francie as well as modern collectibles. Offers a message board and mailing list.
http://www.dollattic.com

Gigi's Dolls
German site offering a line dolls, giftsets, fashions and accessories.
http://www.gigisdolls.de/index.php3?L=2

Lynn Hautala's DollHotline.com
Features a large selection of vintage and contemporary dolls, porcelains, clothing, and accessories.
http://www.dollhotline.com/

Marl & B
Offering current editions as well as vintage booklets, dolls and accessories.
http://www.marlbe.com/

PBK Dolls
One-of-a-kind fashion dolls for sale, includes artist information.
http://pbkdolls.theartist.ca/