Here are some great articles and websites about helping children develop creative thinking skills!
http://www.creativity-portal.com - TONS of excellent ideas!
http://www.exquisite-minds.com/ - all about teaching and parenting gifted and creative children. Many interesting ideas and links.
http://www.creativityforlife.com/index.php - articles about all kinds of creativity in our lives.
http://www.brucevanpatter.com/keepkidscreative.html - great ideas for teaching creative writing
"Creative Play Helps Children Grow." http://www.nncc.org/Curriculum/create.play.grow.html
"Experts Concerned About Children's Creative Thinking." http://www.post-gazette.com/pg/04228/361969.stm
Moran, James D. "Creativity in Young Children." http://www.kidsource.com/kidsource/content2/Creativity_in_kids.html#credits
"Creative Thinking Decreases as Children Get Older." http://www.goshen.edu/~marvinpb/11-13-01/Effects-of-Stereotypes.html
DeBord, Karen. "Creativity in Young Children." http://www.canr.uconn.edu/ces/child/newsarticles/FCC711.html
"The Inventive Thinking Curriculum Project." http://www.uspto.gov/web/offices/ac/ahrpa/opa/projxl/invthink/invthink.htm
"Raising Creative Kids." http://www.painterskeys.com/clicks.asp?n=kids.htm
"The Child's Right to Creative Thought and Expression." http://www.acei.org/creativepp.htm
"Fostering Academic Creativity in Gifted Students." (Good ideas for teachers of all students.) http://www.kidsource.com/kidsource/content/academic_creativity.html
"Expanding Minds: Developing Creative Thinking in Young Learners." http://www.teachingthinking.net/thinking/web%20resources/robert_fisher_expandingminds.htm
"Teaching for Creativity: Two Dozen Tips." http://talentdevelop.com/TFCTDT.html
"Study Confirms Sleep Essential for Creativity." http://www.cnn.com/2004/HEALTH/01/21/sleep.creativity.ap/
"Raising Creative Kids." http://thinksmart.typepad.com/good_morning_thinkers/2005/04/raising_creativ.html
"Children and Creativity." http://www.amphi.com/~psych/creative.html