It's not too late to enter to win an Emergency Preparedness Kit. Visit my earlier blog post for details.
If you are just getting started in children's writing, the SCBWI provides some helpful information.
Author Dan Gutman offers tips for young writers.
Keep up with Kid Lit News through the Children's Book Council. You can also find submission guidelines on their site for publishers who are CBC members.
This Book Marketing and Book Promotion website contains a giant list of links to publisher sites. I would highly recommend checking the editors before submitting because of frequent changes in the industry, but this list might introduce you to some publishing houses you were unaware of.
Relating to staffing changes, Harold Underdown provides editorial news for children's book publishers at Who's Moving Where.