I just finished reading Michael Pollan's The Omnivore's Dilemma (which had been included in my birthday presents from Offsprings #1&2). It was a worthwhile read, a real eye-opener about what we eat, where it comes from, and how it gets to our tables. (I won't bother with a book review because you can read the NYTimes review here.)
Since I'm realistic, I know I won't be making immediate, drastic changes in my eating habits. However, I will definitely be making more of an effort to choose foods where words such as "natural", "organic", "local", and/or "sustainably raised" apply.
Of course part of the trick is making sure those labels are accurate. (Misleading marketing drives me crazy!) Bopping around the internet, I found the Sustainable Table website. You can type in your zip code and find good local resources. So that's a start!