Some of the most common emails I receive through Mac Power Users include questions about whether we've done a show on a specific topic, or suggestions to do a show on topic. Many times, I end up writing back telling listeners, we have in fact covered that topic.
On the www.macpowerusers.com site you can view a list of previous shows, search shownotes, contact us, and more. But, what if you want to make things even simpler? MPU Listener Fernando has created an Alfred workflow for searching Mac Power Users shownotes. More information and workflow is available on GitHib.