Hacker Monthly #21
Netizens Media
Hacker Monthly (21)
The Architecture of Open Source Applications: Elegance, Evolution, ...
Amy Brown & Greg Wilson
Hacker Monthly March 2011
Hacker Monthly (10)
Addiction and Recovery
SLAA Fellowship-Wide Services
Haskell Programming from first principles
Chris Allen & Julie Moronuki
Write Yourself a Scheme in 48 Hours
Wikibooks contributors