Are you more of a homesteader than a farmer? Is your focus becoming self-sufficient rather than reaping in the profits at the market (ha! a little farm humor for you there). You may want to check out some of the tips from the About.com guide to Frugal Living, Erin Huffstetler, because keeping tabs on expenses and finding more ways to DIY are cornerstones of any good homesteading venture.
And there's some attention given to urban homesteading in The New York Times, with a focus on these folks in San Francisco whose website has some interesting how-to-homestead videos. Check it out!