Who are the top Java / SUN bloggers?

Rich Green, head (& Executive VP) of software at SUN:
http://blogs.sun.com/richgreen/
Rich Green is a long-standing guy at SUN, having been a general manager of Solaris products. He was at SUN for 14 years before moving to Bill Coleman's Cassatt Corporation, specialising in virtualisation technologies. (At Cassatt, Rich was EVP of Product Development). Before leaving SUN he was a key witness in the antitrust case with Microsoft, resulting in a $1.6bn settlement and 10-year collaboration agreement.

James Gosling's ("Father of Java - the language formerly known as Oak") blog :
http://blogs.sun.com/jag
James got his PhD from CMU in 1983. He did the original design for the Java programming language and wrote its first compiler and VM. He is also the author of emacs.

Jonathan Schwartz, SUN's CEO, talks about various things including acquisition of MySQL AB:
http://blogs.sun.com/jonathan/entry/winds_of_change_are_blowing
Jonathan has a consulting background from McKinsey and replaced the previous CEO Scott McNealy who was also a co-founder in 1982, along with Vinod Khosla (now running "venture assistance" firm, Khosla Ventures), Bill Joy (author of Berkeley UNIX) and Andreas ("Andy") von Bechtolsheim (UNIX workstation innovator). Vauaghan Pratt, a Stanford University professor, advised the company.

Mike Dillon, SUN's General Counsel:
http://blogs.sun.com/dillon/
JD from University of Santa Clara, has worked for a number of law firms in the Bay Area.

Michelle Dennedy, SUN's CPO:
http://blogs.sun.com/suncpo/
Has both a legal and science background.