I've found that journaling can be a helpful adjunct to such a process. Perhaps the learning logs Bob Williams and I created may be of help to you. As a bit of practical advice, I've also found that it helps to inject new ideas into your thinking, either by reading or listening, while reflecting through journaling and working with a learning set.
If you're interested in studying action learning or its close cousin, action research, check out the excellent, free, online (asynchronous) AREOL course offered twice a year by Bob Dick. AREOL 25 begins February 2007; sign up soon!