Here are good sites for book reviews, lists of what’s popular and suggestions in finding a new author.
BookSeer What should I read next? BookSeer presents readers with a simple form asking what you liked about a book you have read and then gives you suggestions of books you may like.
Yournextread.com It’s as easy as typing in a title to find a simple grid of suggestions for that next book you want to read.
shelfari – another webpage where you can read and write reviews, join an on-line book discussion or build a personal library.
For the Romance Reader–
Romantic Times - info on authors, series and ratings and everything romantic in fiction!
Fantastic Fiction information on fantasy books and authors – huge listing !