While I was at the Southeast Strawberry Expo in Durham, NC I came across farmers marketing their products via Craigslist. This is an interesting way to market farm products because I normally think of Craigslist as a place to sell a used bike or advertise an apartment rental.
If you are not familiar with Craigslist, it is a simple, free classifieds board focused on a single city or area. It is also one of the largest and most heavily used sites on the web. There are Craigslist pages for most metropolitan areas across the United States and many classified categories from automobiles to lost-and-found notices.
I found this posting on the Raleigh, NC Craigslist site listing "U-pick" turnips and greens:
Though posting your farm products on Craigslist will only work if you serve a metropolitan area, I think it could be a successful strategy especially for time sensitive postings like "U-Pick" strawberries, coupons, or anything that customers can take action on quickly. If you end up using Craigslist to advertise your products, please let us know how it goes.