Free/Online Books/Magazines

Music

Jazz Inside

A Jazz Improvisation Primer

JazzEd Magazine

A history of Jazz Music (most chapters available)

Our Environment

Hotspots Revisited: Earth's Biologically Richest and Most Endangered Terrestrial Ecoregions

IT / TECH

MSDN Magazine

CoDe FOCUS

Techsmart

Photography

PhotographyBB

PhotoNews

PBASE Magazine

Apogee Photo... The Internet's Photography Magazine