Authors
A handy reference guide to authors and genres [from the Hennepin County, MN, Library]

Bestseller Lists/Reviews
Amazon.com [Top 100 Bestsllers - updated hourly]
Barnes & Noble [Top 100 Bestsllers - updated hourly]
Bestseller Lists 1950-1995
BookSpot ["The best of book reviews, book stores, reading lists and more..."]
BookWire (from R.R.Bowker) [includes book industry news & authors in the media]
The Gate Guide [includes a book review archive]
The New York Times Books
Publishers Weekly
USA Today

Book Awards
Book Award Links [from BookSpot]
Coretta Scott King Awards
Literary Prizes, Awards etc. [adult & children's literature]
Yahoo's list of Book Awards
Children's
Boston Globe - Horn Book Awards
Caldecott Medal Home Page [official website]
Children's Book Awards [includes: Newberry Medal, Caldecott Medal, and International Awards]
Database of Award Winning Children's Literature [includes searchable database]
Newbery Medal Home Page [official website]
Yahoo>Literature>Awards>Children
Nobel Prize in Literature
Pulitzer Prize
Science Fiction, Fantasy, Horror
Hugo Award Winners

Book Clubs
Beebe Library Booklists [Wakefield Public Library] - Click on "Book Lists"
Find a Good Book [Hennepin County Library]
Rachel's Compendium of Online Book Discussions
Vintage Books
The Mystery Reader
NBC's Today Show's Book Club
The Romance Reader

Book Stores
Amazon
Barnes & Noble
Books-A-Million
Borders.com
MX BookFinder
WordsWorth

Catalogs
James Prendergast Library
Library of Congress Online Catalog
WNYLibraries.org
Buffalo & Erie County Public Libraries

Rare Books
Advanced Book Exchange (ABE) [out-of-print, rare and out-of-stock books]
Alibris [out-of-print, rare and out-of-stock books]
Bibliofind
Books-Rare:  The Book Collector's Home

Readers' Advisement
Fantastic Fiction  [Includes the latest titles and series.]
Fiction_L
Fiction_L Booklists 

Series
Fantastic Fiction  [Includes the latest titles and series.]
Juvenile Series and Sequels [Mid-Continent Public Library]