Here are some of my favorite links in the community of writers, illustrators, educators, and more!
For Writers & Illustrators
American Library Association: Caldecott and Newbery Winners
http://www.ala.org/ala/alsc/awardsscholarships/literaryawds/literaryrelated.htm
Authorlink http://www.authorlink.com/
Cynthia Leitich Smith http://www.cynthialeitichsmith.com/
Illustrator Biographies http://www.bpib.com/illustra.htm
The Purple Crayon http://www.underdown.org/index.html
Society for Children's Book Writers and Illustrators, National
http://www.scbwi.com/
For Fantasy Writers
Molly Gloss http://www.mollygloss.com/
Ursula K. Le Guin http://www.ursulakleguin.com/
Vonda N. McIntyre http://www.oz.net/~vonda/
For Teachers
BookVisits: author/illustrator visits and talks http://www.bookvisits.org/
Children's Book Council http://www.cbcbooks.org/
International Reading Association http://www.reading.org/
Junior Library Guild http://www.reading.org/
School Library Journal http://www.schoollibraryjournal.com/
Tracie Vaughn Zimmer: downloadable teacher guides for current
books http://www.tracievaughnzimmer.com/
For Kids
America Writes for Kids: links to all kinds of things!
http://usawrites4kids.drury.edu
American Library Association: Caldecott and Newbery Award Winners
http://www.ala.org/ala/alsc/awardsscholarships/literaryawds/literaryrelated.htm
Spaghetti Book Club http://www.spaghettibookclub.org/
WonderKorner http://www.peak.org/~bonwritr/wonder1.htm
Children's Author and Illustrators' Websites
Art Portfolio Sites
Picture Book Artists http://www.picturebookartists.com/