Lifehacker has a good article on making sure you're in the best shape possible for any economic downturn. They recommend making sure your savings are FDIC insured, continuing to reduce your debt, not panicking about your investments, and recession-proofing your career, among other things. There are lots of links to all the financial experts they're drawing from. Well worth a read!
A blog I recommend for personal finance in general is Get Rich Slowly -- they always have sensible advice.