DevOps Gone Wild!
Details
Capistrano best practices — Warren Vosper (http://deafmacbeth.net/)
Building Mongodb Servers with Vagrant and Chef — Nathen Harvey (http://www.visualcv.com/nathen)
And, just to mix things up, some non-DevOps stuff...
Letting Your Brain Work for You — Chris Cahoon
Object Oriented CSS (oocss.org) Will Change Your Life — Scott Messinger (http://blog.scottmessinger.com/)
Stupid Bash Tricks (and the ruby I wish I'd written) — Nick Evans (http://ekenosen.net/nick/)