Increasing Food Security - The Local

I've decided to try and share some of my knowledge of growing plants and vegetables with my son. As a child, I help the family with the small garden we had - and we ate what we grew. We had numerous failures (insects) but many delicious successes - I want to share that with my son. It's almost planting time here, and we're getting prepping the soil in between bouts of heavy rain. He'll be involved in what to plant and the reasoning behind it, and I'll also be sharing some information about local food markets with him. He's already been to a couple of farmer's markets with me. He was also lucky enough to have some experience with his father when he had a farm, and took care of a pony, chickens and rabbits. It was a good thing for him. I want to make sure that this knowledge sharing continues.

What else could I do?

I'd like to see people who grow like to cook, bake or can well - be able to share that (for profit or trade). Something like setting up a neighbourhood network where people can list what they have - canned peaches, fresh pumpernickel (whatever), and then people can perhaps pick up on a weekend. I'd much rather pick up a fresh loaf of bread from a friend than go the grocery store. The neighbours can connect via social media sites (ie facebook & twitter) to update on goods and share knowledge or tips on growing, harvesting etc. I'd like to see this span across the city to promote local growing, but really at the micro level. This isn't for everybody - there's considerable trust involved (but I do think that we can instill accountability and responsibility in this), but it might be really fun, interesting, economical etc for others.