William Niederkorn, who has written previously on the Shakespeare Authorship Question in many publications, including the New York Times recently reviewed the new book, Dating Shakespeare's Plays , published by Parapress in England for the De Vere Society. His review appeared in the Brooklyn Rail and a link to the online version (I don't know how long the link will be active) is http://www.brooklynrail.org/2011/04/books/the-shakespeare-chronology-recalibrated The book may be ordered directly from Parapress for $43 ( http://www.parapress.co.uk/ ).
a Michigan group dedicated to the study of the works of William Shakespeare with particular interest in the authorship question