Richard Monson-Haefel, famous and well-known java author (on EJB and other enterprise-java stuff), activist and committer to various JSR's decided to perform a rather dramatic career change - which he explains in Richard Monson-Haefel's Blog.
He joined Burton-Group as a consultant - and will refrain from his formerly active role in the java community, e.g. Wish you luck, Richard. Loved your books.