Yes, they have a list of 100 Kindle Books for $3.99 or less. Some goodies my kidlit, literary and sciency friends might be interested in:
Feed by M. T. Anderson
Because of Winn Dixie by Kate DiCamillo
Welcome to the Monkey House by Kurt Vonnegut
Galapagos by Kurt Vonnegut
The Penderwicks by Jeanne Birdsall
Junie B. Jones and the Stinky, Smelly Bus by Barbara Parks
Magic Treehouse #1: Dinosaurs Before Dark by Mary Pope Osborne
They also have a Kindle Daily Deal now (today's os some boring management book, but there have been some good ones and it's worth keeping an eye on).
Okay, enough crass commercialism. Back to our regularly scheduled lazy posting (non)schedule.