Anyone have a good source that shows short and long term changes in the price of specific food items? I've seen some prices go up in the last year or so, but would like more details. I think having a better sense of the changing price of specific food items might help us find gaps in our food preparedness plans.
The little discussion in Thuja's thread about peanut butter and having a stocked pantry made me think of a news story I read a few weeks ago about the rising price of peanut butter, and how I failed to heed that news by stocking up while it was still relatively cheap.
Speaking of peanut butter,
slow-crash, peanut-butter related news 
$this->bbcode_second_pass_quote('', 'F')ood banks worry about rising price of peanut butter, a protein source among most-wanted items
Food banks and pantries around the country say high peanut butter prices have made it harder for them to provide one of their most-requested items — and a favorite among children — this holiday season.
Peanut butter prices have gone up 30 percent or more because hot weather in states like Texas and Georgia hurt this year’s peanut crop and because some farmers switched to more profitable crops, such as corn and cotton.
The increase in peanut butter prices and the cost of food overall has been a blow to family budgets, and hunger-relief groups that say they’re serving more clients even as the poor economy has made it harder to get donations.