Booth, Heather and Michael Cox.  RA4YA Wiki. http://ra4ya.pbwiki.com/

Booth, Heather.  Serving Teens Through Readers’ Advisory.  ALA Editions 2007.

One stop source for practical information on teen RA, plus lists of "Sure Bets" in several popular genres. 

Brenner, Robin.  No Flying, No Tights.  http://www.noflyingnotights.com/

Well respected and established review site for graphic novels.  With sections for kids, teens and adult readers. 

Cords, Sarah Statz.  The Real Story: Guide to Nonfiction Reading Interests.  Libraries Unlimited, 2006. 

Adult nonfiction can be just as appealing to teens as teen NF, and this is the best place to get an overview of the NF genres and titles suggestions. 

Fraser, Elizabeth. Reality Rules: A Guide to Teen Nonfiction Reading Interests. Libraries Unlimited, 2008. 

A new guide to nonfiction for teens. 

Herald, Diana Tixier.  Genreflecting: A Guide to Popular Reading Interests.  6th ed.  Libraries Unlimited, 2005. 

Best single source for information on adult reading, and popular adult fiction genres. 

Herald, Diana Tixier.  Teen Genreflecting.  2nd edition.  Libraries Unlimited, 2008.

Just like adult Genreflecting, this serves as a great single source for information on popular genres and titles suggestions. 

Moyer, Jessica E.  Research Based Readers’ Advisory.  ALA Editions 2008.

The Research Review provides an expert overview of new research, and the Librarian's View discusses practical issues.  Includes real-world examples of RA changes based on the results of research; gives pointers for further research through reference lists at the end of each chapter; and, offers extensive coverage on a wide range of topics, including bookgroups and audiovisual readers' advisory, as well as collection development and management

Moyer, Jessica E.  Research Based RA Wiki. http://researchbasedra.pbwiki.com/

Pawuk, Michael.  Graphic novels: a genre guide to comic books, manga and more. Libraries Unlimited, 2008.

Ross, Catherine, et al.  Reading Matters: What the Research Reveals About Reading, Libraries, and Community.  Libraries Unlimited, 2006. 

Unarguably, the best compilation and analysis of reading research, with chapters on children, adults and teens. 

Thompson, Jason.  Manga: The Complete Guide.  Ballantine Books, 2007.