Golden Books (Random House)

HarperCollins
Home Of: Avi, Kevin Henkes, and more.
Website Extras: Author Interviews; Games; Screensavers; Contests; E-Cards; Newsletter; Book-Related Activities
Especially for Teachers: Teacher's Electronic Newsletters; "Be a Harper Teacher"

Little, Brown and Company (Time Warner)
Home of: Marc Brown, Matt Christopher, Mary Ann Hoberman, Todd Parr, and more.
Website Extras: Author Directory; Activity Center with Games, Screensavers, Printables Activities and Coloring Sheets; Children's Newsletter; Teen Reads Newsletter; Reading Guides.
Especially for Teachers: Teacher Guides

Kids Can Press
Home of: Franklin the Turtle; Elliot Moose
Website Extras: Authors & Illustrators Info.;
Especially for Teachers: Classroom Activities Downloads; Unit Studies.

Penguin Putnam
Home Of: Tomie DePaola, Jean Fritz, Steven Kellogg,Eric Kimmel, Patricia Polacco, and more.
Website Extras: Screensavers; E-Cards; Wallpaper; Preview Magazine (For Teens); Author Bios
Especially for Teachers: The Penguin Teacher Club