In his latest See Page XX [1] column, When Planning Turns to Wrangling [2], Robin Laws talks about the perils of taking a hands-off approach when your players start to plan. It often feels like the right thing to do, and in many cases it’s exactly the wrong thing to do — nudging is good.
He also praises focused GMing Q&A seminars, which is exactly what Mastering Your GM-Fu [3] — offered free at GenCon Indy 2006 — is going to be.