Michael Tobis is always worth reading, but he has a particularily well done essay up on Gristmill about some of the deeper implications and causes of the current global food crisis.
Visit his post about it here, and after bookmarking his site, click through to the Gristmill article he has linked.
I think he dismisses too much the importance of biofuel demand in the current equation, but that is a minor disagreement. He correctly identifies the real problem as one of food distribution being governed by financial mechanisms only, and the lamentable lack of any other metric aside from ability to pay in the way a “free” market allocates resources.
Always worth reading!