José A. Ortega Ruiz (jao) writes about Scheme, Haskell, Emacs, and Lisp, including the Geiser Scheme mode for Emacs.
Commenters call the old blog a treasure trove of Scheme material and describe jao as a talented, humble, helpful member of the Lisp community.
Jao's old blog[1] is a treasure trove of information. Modern Lisp hackers like him, Zach Beane and Edi Weitz are great representatives for the Lisp community: incredibly talented and yet very humble and more than willing to help out those just starting out in Lisp.
[1] http://programming-musings.org/
Geiser is a great tool for working with Scheme, and the author jao (José A Ortega Ruiz) is a genuinely good guy. His old blog at
http://programming-musings.org
is full of Scheme goodness, and he has another site devoted to Emacs hacks at
http://emacs.wordpress.com