Here are some websites for reading book lists:
HEDGEHOG BOOKS
http://www.gradelevelreadinglists.org/
ALA Notable book lists
http://www.ala.org/ala/alsc/awardsscholarships/childrensnotable/
notablecbooklist/currentnotable.htm
NEWBERRY WINNERS
www.ala.org/ala/alsc/awardsscholarships/literaryawds/newberymedal/newberrymed
al.htm
Texas Bluebonnet list: Past, Present and Future
http://www.txla.org/groups/tba/
A great book list for reading:
http://home.comcast.net/~ngiansante/