Here are some articles that you might find useful.
Please add links to any articles you find useful :-)

Aesop Thatch (2006) The Second Age
A blog by a Teen Second Life resident, including an interview with an enterprising island / mall owner

Matt Farber (10th May 2004) The School of Second Life, Part One: Matt Farber, New World Notes.
Description: An article on the accessibility of the Second Life environment and using Second Life as a teaching tool.

Daniel Terdiman (6th April 2005) Wired: Second Life Teaches Life Lessons,2101,67142,00.html
Disabled and socially excluded young people all find a place in Second Life