In my endeavor to accomplish two New Year's resolutions at one time (mainly use my treadmill and read money management magazines), I came across this great tip.
If you want to know if you have a good fund in your 401k, "go to Morningstar.com. Plug in the fund's name, and site will show that portfolio's percent rank in category. Ideally you'll want to go with a fund that finished in the top 50% of its category over the past five years. This won't guarantee the fund can repeat, but it's at least a sign of sustained solid performance. If you plan lacks choices that accomplish this feat, put your money into the ones that come the closest."
-Money Magazine, March 2010, pg 105