FictFact
This site is “dedicated to helping you read fiction book series in order. Easily find out which book is next with a custom list based on your favorite series!”
What’s Next?
Kent District Library (Michigan) offers this site for readers to find information concerning adult fiction in series (two or more books linked by character, setting, etc.). Search by author, title or series to get the proper sequence of titles.
What’s Next? Teen Series and Sequels
The Bettendorf Public Library (Iowa) has created this site with a long list of books in series that have high appeal for teen readers, including fantasy books in series. Search by author or series name.