Here's a partial description of the site from Blue Web'n:

"The Screen Actors Guild Foundation is proud to bring you Storyline Online, an on-line streaming video program featuring SAG members reading childrens books aloud. As of 2004, there were 10 stories available. Additional programs from BookPALS include Storyline (http://www.bookpals.net/storyline.html - children can dial a toll-free-number to hear a book read by an actor anytime, twenty-four hours a day, seven days a week); PencilPals ( http://www.bookpals.net/pencilpals.html - designed to make reading and writing a first person experience for children in elementary and middle schools by setting up "pen pals"); and BookFinder (http://www.bookpals.net/cgi-bin/bookfinder/index.pl - a searchable database of read-aloud picture books on a wide range of topics). Additional programs are available in different parts of the U.S."