Here are some great articles on everything from mastering to promotion:

Passive Promotion
My music promotion blog focuses on "set it and forget it" methods.

My Mix Tips Articles
Topics include mixing with a reference, taming the lowest octave, spectral mixing, and fine-tuning your final mixes for mastering.

The Musician's Guide to Audio Mastering
I explain the fundamentals in this in-depth interview with MicControl.

Resonance Mastering Room Construction
Read about the design, construction, and cost of my mastering room.

24/192 Music Downloads
Why high sample rate downloads are a bad idea, and why there's no point in recording above 44.1 KHz.

TAXI's Guide to Mastering
What it is and why you shouldn't do it in your garage. A great introduction.

Mixed Up About Mastering
Which is which? What should you do yourself, and what should you leave to me?

20 Tips on Mixing
Sound On Sound's Paul White delivers a crash course in instant mixing.

Music Marketing Classroom
It's a little "salesy," but the free cheat sheets are full of great promo ideas. Definitely worth a look!

Brian Farrish Radio Promotion articles
Think it's easy to get radio play? Here's a reality check.