Authors, Authors!
If you want to contact an author, these websites might help:
Balkin Buddies
Artists and illustrators who are available for visits at a fee.
Connecting Authors
This site connects librarians, writers, publishers, authors and illustrators with the mission to develop lifelong readers.
Skype an Author
How to have a successful virtual author visit by Mona Kerby and Sarah Chauncey.
SCBWI
The Society of Children’s Book Writers and Illustrators provides information about author or illustrator visits.